Failed to generate SPARQL query

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
wikidata at https://qlever.cs.uni-freiburg.de/api/wikidata-sebastian

You can use the following SPARQL prefixes implicitly in all functions:
cc: <http://creativecommons.org/ns#
data: <https://www.wikidata.org/wiki/Special:EntityData/
dct: <http://purl.org/dc/terms/
geo: <http://www.opengis.net/ont/geosparql#
geof: <http://www.opengis.net/def/function/geosparql/
imdb: <https://www.imdb.com/
math: <http://www.w3.org/2005/xpath-functions/math#
ontolex: <http://www.w3.org/ns/lemon/ontolex#
owl: <http://www.w3.org/2002/07/owl#
p: <http://www.wikidata.org/prop/
pq: <http://www.wikidata.org/prop/qualifier/
pqn: <http://www.wikidata.org/prop/qualifier/value-normalized/
pqv: <http://www.wikidata.org/prop/qualifier/value/
pr: <http://www.wikidata.org/prop/reference/
prn: <http://www.wikidata.org/prop/reference/value-normalized/
prov: <http://www.w3.org/ns/prov#
prv: <http://www.wikidata.org/prop/reference/value/
ps: <http://www.wikidata.org/prop/statement/
psn: <http://www.wikidata.org/prop/statement/value-normalized/
psv: <http://www.wikidata.org/prop/statement/value/
qfn: <http://qlever.cs.uni-freiburg.de/function#
ql: <http://qlever.cs.uni-freiburg.de/builtin-functions/
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
ref: <http://www.wikidata.org/reference/
s: <http://www.wikidata.org/entity/statement/
schema: <http://schema.org/
skos: <http://www.w3.org/2004/02/skos/core#
v: <http://www.wikidata.org/value/
wd: <http://www.wikidata.org/entity/
wdno: <http://www.wikidata.org/prop/novalue/
wdt: <http://www.wikidata.org/prop/direct/
wdtn: <http://www.wikidata.org/prop/direct-normalized/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
dc: <http://purl.org/dc/elements/1.1/
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] What albums has Atif Aslam been on?

[Assistant] To answer the question about the albums Atif Aslam has been on, we need to identify the entity for Atif Aslam and then find the albums associated with him. Let's start by searching for the entity for Atif Aslam.

[Tool]
Top 10 entity alternatives:
1. Atif Aslam, also known as Muhammad Atif Aslam (wd:Q755830): Pakistani playback singer and songwriter, singer-songwriter, film actor, singer, actor
2. Aslem District, also known as Aslam (wd:Q4117502): District of Hajjah Governorate, Yemen
3. ATIF (wd:Q16868993): human settlement in Saudi Arabia
4. Atif (wd:Q56537554): family name
5. Atıf, also known as Atıf (first name), Atıf (given name) (wd:Q20669067): male given name
6. Aslam (wd:Q37471643): family name
7. Atif (wd:Q61780244): male given name
8. Nazir Ahmad Aslam, also known as Asl., N.A. Aslam, Aslam (wd:Q67187108): Pakistani entomologist (1918–1971), entomologist, coleopterist
9. Aslam, also known as أسلم (wd:Q28790443): male given name (أسلم)
10. Aslam (wd:Q65487248): German badminton player, badminton player

[Assistant] The top result for "Atif Aslam" is the Pakistani playback singer and songwriter, which matches our context. We will use this entity (wd:Q755830) to find the albums he has been on. Next, we need to identify the property that links artists to their albums. Let's search for properties related to "album" or "music album" for this entity.

[Tool]
Top 10 property alternatives:
1. AllMusic artist ID, also known as AllMusic, AllMusic ID, amg artist (wd:P1728 as p/wdt): identifier for an artist, musical group, or record label in the AllMusic database (record labels are listed as "artists")
2. genre, also known as genre of music, type of music, type of film, music genre, literary genre (wd:P136 as p/wdt): creative work's genre or an artist's field of work (P101). Use main subject (P921) to relate creative works to their topic
3. discography, also known as discography link, recording catalog (wd:P358 as p/wdt): item for list pages with discography of artist or band, list of works
4. image, also known as still capture, still, screenshot, screen capture, portrait (wd:P18 as p/wdt): image of relevant illustration of the subject; if available, als...tor map, flag image, signature image, logo image, collage image)
5. country of citizenship, also known as subject of (country), nation of citizenship, national of, nationality, nation (wd:P27 as p/wdt): the object is a country that recognizes the subject as its citizen, country
6. Apple Music artist ID (U.S. version), also known as iTunes author ID, music.apple.com/artist/, iTunes artist ID (American version), https://music.apple.com/artist/, Apple Music artist ID (American version) (wd:P2850 as p/wdt): identifier for a musical artist or author in the U.S. version of Apple Music
7. work period (start), also known as start working, flourished (start), start time for work, start date of activity, fl. (start) (wd:P2031 as p/wdt): start of period during which a person or group flourished (fl. = "floruit") in their professional activity, start time, floruit
8. award received, also known as win, winner of, recognition title, received award, prize received (wd:P166 as p/wdt): award or recognition received by a person, organization or creative work
9. instrument, also known as uses this instrument, teaches instrument, instruments, plays this instrument, plays instrument (wd:P1303 as p/wdt): musical instrument that a person plays or teaches or used in a music occupation, uses
10. topic's main category, also known as article's main category, category, category for this topic, catmain, has category (wd:P910 as p/wdt): main Wikimedia category

No other items found

[Assistant]
The search for properties related to "album" or "music album" for Atif Aslam did not yield any direct properties linking him to his albums. However, the property "discography" (wd:P358) might be useful, as it typically points to a list of an artist's works. Let's check if this property provides any relevant information.

We will execute a SPARQL query to see if there are any discography entries for Atif Aslam.

```sparql
SELECT ?discography WHERE {
  wd:Q755830 wdt:P358 ?discography .
}
```

Let's run this query to see if it returns any results.

[Tool]
Got 1 row and 1 column:
| ?discography |
| ------------ |
| wd:Q4815772  |

[Assistant]
The query returned a single result, `wd:Q4815772`, which is likely a discography entry for Atif Aslam. To find the albums, we need to explore what this discography entry contains. Let's list the triples for this discography entry to see if it links to specific albums.

We will execute a SPARQL query to list the triples for `wd:Q4815772`.

```sparql
SELECT ?property ?value WHERE {
  wd:Q4815772 ?property ?value .
}
```

Let's run this query to see if it provides any useful information.

[Tool]
Got 40 rows and 2 columns, showing the first 5 and last 5 rows below:
| ?property               | ?value                                          |
| ----------------------- | ----------------------------------------------- |
| schema:description      | "discografie van Atif Aslam"@nl                 |
| schema:description      | "discographie d'un artiste"@fr                  |
| schema:description      | Wikimedia artist discography                    |
| schema:description      | "дискографія виконавця"@uk                      |
| schema:name             | Atif Aslam discography                          |
| ...                     | ...                                             |
| instance of (wdt:P31)   | Wikimedia artist discography (wd:Q104635718)    |
| main subject (wdt:P921) | Atif Aslam (wd:Q755830)                         |
| has list (p:P2354)      | s:Q4815772-3dd0fc0e-423e-02b2-4383-e77e0cacb543 |
| instance of (p:P31)     | s:Q4815772-7D684980-283B-4199-859B-FB779DE1FB53 |
| main subject (p:P921)   | s:Q4815772-9CA54809-31CF-4A30-8214-A9B1470B5243 |

[Assistant]
The discography entry `wd:Q4815772` provides some metadata, including descriptions and the main subject (Atif Aslam). However, it does not directly list the albums. The property `has list` (wdt:P2354) might point to a list of albums, but it seems to be a statement rather than a direct link to the albums.

Since the direct approach did not yield the desired results, let's try another method. We can search for properties related to "album" or "music album" in general and see if they can help us find the albums Atif Aslam has been on.

Let's search for properties related to "album" or "music album" in general.


PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
SELECT ?album WHERE {
  ?album wdt:P31 wd:Q215380 .
  ?album wdt:P175 wd:Q37150 .
}

Despite trying multiple approaches, including using properties such as `notable work`, `performer`, `main subject`, `composer`, and `lyricist`, no studio albums were found for Lana Del Rey in the Wikidata knowledge graph. This suggests that the data might be structured differently or the properties might be more complex. My best attempt at a SPARQL query to find the studio albums of Lana Del Rey did not return any results.

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
wikidata at https://qlever.cs.uni-freiburg.de/api/wikidata-sebastian

You can use the following SPARQL prefixes implicitly in all functions:
cc: <http://creativecommons.org/ns#
data: <https://www.wikidata.org/wiki/Special:EntityData/
dct: <http://purl.org/dc/terms/
geo: <http://www.opengis.net/ont/geosparql#
geof: <http://www.opengis.net/def/function/geosparql/
imdb: <https://www.imdb.com/
math: <http://www.w3.org/2005/xpath-functions/math#
ontolex: <http://www.w3.org/ns/lemon/ontolex#
owl: <http://www.w3.org/2002/07/owl#
p: <http://www.wikidata.org/prop/
pq: <http://www.wikidata.org/prop/qualifier/
pqn: <http://www.wikidata.org/prop/qualifier/value-normalized/
pqv: <http://www.wikidata.org/prop/qualifier/value/
pr: <http://www.wikidata.org/prop/reference/
prn: <http://www.wikidata.org/prop/reference/value-normalized/
prov: <http://www.w3.org/ns/prov#
prv: <http://www.wikidata.org/prop/reference/value/
ps: <http://www.wikidata.org/prop/statement/
psn: <http://www.wikidata.org/prop/statement/value-normalized/
psv: <http://www.wikidata.org/prop/statement/value/
qfn: <http://qlever.cs.uni-freiburg.de/function#
ql: <http://qlever.cs.uni-freiburg.de/builtin-functions/
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
ref: <http://www.wikidata.org/reference/
s: <http://www.wikidata.org/entity/statement/
schema: <http://schema.org/
skos: <http://www.w3.org/2004/02/skos/core#
v: <http://www.wikidata.org/value/
wd: <http://www.wikidata.org/entity/
wdno: <http://www.wikidata.org/prop/novalue/
wdt: <http://www.wikidata.org/prop/direct/
wdtn: <http://www.wikidata.org/prop/direct-normalized/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
dc: <http://purl.org/dc/elements/1.1/
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] How many studio albums has Lana Del Rey have?

[Assistant]
To answer the question about how many studio albums Lana Del Rey has, we need to identify the following:

1. The entity for Lana Del Rey.
2. The property that indicates studio albums.
3. The count of such albums.

Let's start by searching for the entity for Lana Del Rey.

[Tool]
Top 10 entity alternatives:
1. Lana Del Rey, also known as Lana Del Ray, May Jailer, Lizzy Grant, Sparkle Jump Rope Queen, Elizabeth Woolridge Grant (wd:Q37150): American singer-songwriter, singer-songwriter, recording artist, record producer, film actor, composer, singer, poet
2. Lana Del Rey, also known as Lana Del Rey EP (wd:Q1149043): 2012 EP by Lana Del Rey
3. Freak (Lana Del Rey song) (wd:Q22001985): 2016 single by Lana Del Rey
4. American (Lana Del Rey song) (wd:Q66817375): 2012 song by Lana Del Rey
5. Change (Lana Del Rey song) (wd:Q97159559): 2017 song by Lana Del Rey
6. Weekend Update: Lana Del Rey (wd:Q110060506): sketch from Saturday Night Live
7. Text Book (Lana Del Rey song) (wd:Q106936354)
8. Lana Del Rey's 2023–2024 tour, also known as Did You Know That There's a Tour Around the World, Did You Know That There's a Tunn...nder Ocean Blvd Promotional Tour (wd:Q121770780): concert tour by Lana Del Rey
9. Lana Del Rey’s American Grotesque (wd:Q126796381): scholarly article
10. Tough (Quavo and Lana Del Rey song) (wd:Q127446878): 2024 single by Quavo and Lana Del Rey

[Assistant]
The top result for Lana Del Rey is the correct entity: `wd:Q37150`. Now, we need to find the property that indicates studio albums. We can search for properties related to "album" or "studio album" to find the appropriate property.

Let's search for properties related to "album".

[Tool]
Top 10 property alternatives:
1. published in, also known as song on album, tome of the book, tome of, track of, track on (wd:P1433 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): larger work that a given work was published in, like a book, journal or music album, part of
2. form of creative work, also known as work type, work form, type of work, artform, type of reference work (wd:P7937 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): structure of a creative work
3. featured track(s), also known as songs, soundtrack, OST, music tracks, music track (wd:P10664 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): soundtrack of this audiovisual work
4. tracklist, also known as tracks, track listing, track list, songs, list of tracks (wd:P658 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): audio tracks contained in this release, has part(s)
5. record of, also known as is a record of, is record of, records (wd:P11851 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): state or event an object is a physical representation of
6. number of records, also known as entries, rows, records, quantitiy of records, number of rows (wd:P4876 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): number of values of an identifier or records in a catalog
7. soundtrack release, also known as soundtrack single, soundtrack extended play, soundtrack album, has soundtrack album, OST (wd:P406 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): music release that incorporates music directly recorded from the soundtrack of an audiovisual work
8. music created for, also known as music for, music for work, music made for, music made for work, music written for (wd:P9899 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): a work, event, etc. for which a musical composition was created ... was written; a film for which motion picture music was created), created for
9. personal best, also known as PR, record, personal record, PB (wd:P2415 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): an individual's best performance in a given discipline
10. MusicBrainz release group ID, also known as album MBID, single MBID, single ID (MusicBrainz), release group MBID, release group ID (MusicBrainz) (wd:P436 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): identifier for a release group per the MusicBrainz open music encyclopedia (album, single, etc.)

[Assistant]
None of the properties listed seem to directly indicate "studio album." However, we can try to find the specific property that links Lana Del Rey to her studio albums by looking at the properties of the entity `wd:Q37150`.

Let's list the properties of `wd:Q37150` to see if we can find a relevant property.

[Tool]
Got 1,228 rows and 3 columns, showing the first 10 rows below:
| subject                  | property                         | object                                                                                |
| ------------------------ | -------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------- |
| Lana Del Rey (wd:Q37150) | instance of (wdt:P31)            | human (wd:Q5)                                                                                |
| Lana Del Rey (wd:Q37150) | occupation (wdt:P106)            | actor (wd:Q33999)                                                                                |
| Lana Del Rey (wd:Q37150) | sex or gender (wdt:P21)          | female (wd:Q6581072)                                                                                |
| Lana Del Rey (wd:Q37150) | given name (wdt:P735)            | Elizabeth (wd:Q385468)                                                                                |
| Lana Del Rey (wd:Q37150) | date of birth (wdt:P569)         | 1985-06-21T00:00:00Z                                                                                |
| Lana Del Rey (wd:Q37150) | Commons category (wdt:P373)      | Lana Del Rey                                                                                |
| Lana Del Rey (wd:Q37150) | image (wdt:P18)                  | <http://commons.wikimedia.org/wiki/Special:FilePath/LanaDRPrimavera310524%20%2832%20of%20147%29%20%2853765476960%29%20%28cropped%29.jpg> |
| Lana Del Rey (wd:Q37150) | country of citizenship (wdt:P27) | United States (wd:Q30)                                                                                |
| Lana Del Rey (wd:Q37150) | family name (wdt:P734)           | Grant (wd:Q17864440)                                                                                |
| Lana Del Rey (wd:Q37150) | place of birth (wdt:P19)         | New York City (wd:Q60)                                                                                |
| ...                      | ...                              | ...                                                                                |

[Assistant]
From the list of properties, we don't see a direct property indicating studio albums. However, we can try to find the property that links Lana Del Rey to her albums by searching for properties related to "album" specifically for the entity `wd:Q37150`.

Let's search for properties related to "album" for the entity `wd:Q37150`.

[Tool]
Top 10 property alternatives:
1. AllMusic artist ID, also known as AllMusic, AllMusic ID, amg artist (wd:P1728 as p/wdt): identifier for an artist, musical group, or record label in the AllMusic database (record labels are listed as "artists")
2. genre, also known as genre of music, type of music, type of film, music genre, literary genre (wd:P136 as p/wdt): creative work's genre or an artist's field of work (P101). Use main subject (P921) to relate creative works to their topic
3. discography, also known as discography link, recording catalog (wd:P358 as p/wdt): item for list pages with discography of artist or band, list of works
4. image, also known as still capture, still, screenshot, screen capture, portrait (wd:P18 as p/wdt): image of relevant illustration of the subject; if available, als...tor map, flag image, signature image, logo image, collage image)
5. country of citizenship, also known as subject of (country), nation of citizenship, national of, nationality, nation (wd:P27 as p/wdt): the object is a country that recognizes the subject as its citizen, country
6. Album of the Year artist ID, also known as AOTY artist ID (wd:P7050 as p/wdt): identifier for an artist on the Album of the Year (AOTY) website
7. record label, also known as label, labels (wd:P264 as p/wdt): brand and trademark associated with the marketing of subject music recordings and music videos
8. Apple Music artist ID (U.S. version), also known as iTunes author ID, music.apple.com/artist/, iTunes artist ID (American version), https://music.apple.com/artist/, Apple Music artist ID (American version) (wd:P2850 as p/wdt): identifier for a musical artist or author in the U.S. version of Apple Music
9. notable work, also known as artwork, wrote, writer of, works, work (wd:P800 as p/wdt): notable scientific, artistic or literary work, or other work of significance among subject's works
10. work period (start), also known as start working, flourished (start), start time for work, start date of activity, fl. (start) (wd:P2031 as p/wdt): start of period during which a person or group flourished (fl. = "floruit") in their professional activity, start time, floruit

No other items found

[Assistant]
The search for properties related to "album" for the entity `wd:Q37150` did not yield a direct property for studio albums. However, the property `notable work` (`wd:P800`) might be useful, as it can link to significant works, including albums.

Let's try to find the notable works of Lana Del Rey and filter them to only include studio albums. We can use the property `instance of` (`wdt:P31`) to filter out only those works that are instances of a studio album.

First, let's list the notable works of Lana Del Rey.

[Tool]
Got 11 rows and 1 column, showing the first 5 and last 5 rows below:
| ?work                                                               |
| ------------------------------------------------------------------- |
| Blue Banisters (wd:Q106640241)                                      |
| Did You Know That There's a Tunnel Under Ocean Blvd (wd:Q115632843) |
| Ultraviolence (wd:Q15303771)                                        |
| Honeymoon (wd:Q19056536)                                            |
| Lust for Life (wd:Q29051953)                                        |
| ...                                                                 |
| Norman Fucking Rockwell! (wd:Q56655003)                             |
| Paradise (wd:Q59449)                                                |
| Lana Del Ray (wd:Q770514)                                           |
| Video Games (wd:Q771253)                                            |
| Chemtrails over the Country Club (wd:Q80126984)                     |

[Assistant]
We have a list of notable works for Lana Del Rey. Now, we need to filter these works to only include studio albums. We can do this by checking if each work is an instance of a studio album.

Let's execute a query to filter the notable works to only include studio albums.

[Tool] Got no rows and 1 columns

[Assistant]
It seems that none of the notable works of Lana Del Rey are directly linked as instances of a studio album. This suggests that the property `notable work` might not be the best way to find her studio albums.

Instead, let's try to find the albums directly by searching for entities that are instances of a studio album and are related to Lana Del Rey through the `performer` or `artist` property.

Let's search for entities that are instances of a studio album and are related to Lana Del Rey.

[Tool] Got no rows and 1 columns

[Assistant]
It appears that there are no direct links between Lana Del Rey and studio albums using the `performer` or `artist` property. This suggests that the data might be structured differently or the properties might be more complex.

Let's try another approach by searching for entities that are instances of a studio album and then check if Lana Del Rey is mentioned in the context of these albums. We can use the `stated by` property to see if there are any statements linking her to these albums.

Let's execute a query to find studio albums and check if Lana Del Rey is mentioned in the context of these albums.

[Tool] Got no rows and 1 columns

[Assistant]
It seems that the approach of finding studio albums through tracks and performers also did not yield any results. This suggests that the data might be structured differently or the properties might be more complex.

Let's try a different approach by searching for entities that are instances of a studio album and then check if Lana Del Rey is mentioned in the context of these albums using the `main subject` property (`wdt:P921`).

Let's execute a query to find studio albums and check if Lana Del Rey is mentioned as the main subject of these albums.

[Tool] Got no rows and 1 columns

[Assistant]
It seems that even the approach of using the `main subject` property did not yield any results. This suggests that the data might be structured differently or the properties might be more complex.

Given that we have tried multiple approaches and none have yielded results, it's possible that the data for Lana Del Rey's studio albums is not structured in a straightforward way in Wikidata.

However, we can try one more approach by searching for entities that are instances of a studio album and then check if Lana Del Rey is mentioned in the context of these albums using the `composer` or `lyricist` properties.

Let's execute a query to find studio albums and check if Lana Del Rey is mentioned as the composer or lyricist of these albums.

[Tool] Got no rows and 1 columns

[Assistant]
It seems that even the approach of using the `composer` or `lyricist` properties did not yield any results. This suggests that the data for Lana Del Rey's studio albums might be structured differently or the properties might be more complex.

Given that we have tried multiple approaches and none have yielded results, it's possible that the data for Lana Del Rey's studio albums is not structured in a straightforward way in Wikidata.

Since we have exhausted the common properties and approaches, I will provide my best attempt at a SPARQL query that tries to find the studio albums of Lana Del Rey, even though it did not return any results. If this query does not work, it might be necessary to manually verify the data or use a different approach.

Here is my best attempt at a SPARQL query to find the studio albums of Lana Del Rey:

```sparql
SELECT ?album WHERE {
  ?album wdt:P31 wd:Q215380 .
  ?album wdt:P175 wd:Q37150 .
}
```

This query attempts to find entities that are instances of a studio album and are performed by Lana Del Rey.

Since this query did not return any results, I will provide an explanation and my best attempt.

[Tool] Stopped generation process


PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
SELECT ?country ( COUNT( ?winner ) AS ?count ) WHERE {
  ?winner wdt:P166 wd:Q123737 ; wdt:P27 ?country .
}
GROUP BY ?country
ORDER BY DESC ( ?count )
LIMIT 2

United Kingdom

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
wikidata at https://qlever.cs.uni-freiburg.de/api/wikidata-sebastian

You can use the following SPARQL prefixes implicitly in all functions:
cc: <http://creativecommons.org/ns#
data: <https://www.wikidata.org/wiki/Special:EntityData/
dct: <http://purl.org/dc/terms/
geo: <http://www.opengis.net/ont/geosparql#
geof: <http://www.opengis.net/def/function/geosparql/
imdb: <https://www.imdb.com/
math: <http://www.w3.org/2005/xpath-functions/math#
ontolex: <http://www.w3.org/ns/lemon/ontolex#
owl: <http://www.w3.org/2002/07/owl#
p: <http://www.wikidata.org/prop/
pq: <http://www.wikidata.org/prop/qualifier/
pqn: <http://www.wikidata.org/prop/qualifier/value-normalized/
pqv: <http://www.wikidata.org/prop/qualifier/value/
pr: <http://www.wikidata.org/prop/reference/
prn: <http://www.wikidata.org/prop/reference/value-normalized/
prov: <http://www.w3.org/ns/prov#
prv: <http://www.wikidata.org/prop/reference/value/
ps: <http://www.wikidata.org/prop/statement/
psn: <http://www.wikidata.org/prop/statement/value-normalized/
psv: <http://www.wikidata.org/prop/statement/value/
qfn: <http://qlever.cs.uni-freiburg.de/function#
ql: <http://qlever.cs.uni-freiburg.de/builtin-functions/
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
ref: <http://www.wikidata.org/reference/
s: <http://www.wikidata.org/entity/statement/
schema: <http://schema.org/
skos: <http://www.w3.org/2004/02/skos/core#
v: <http://www.wikidata.org/value/
wd: <http://www.wikidata.org/entity/
wdno: <http://www.wikidata.org/prop/novalue/
wdt: <http://www.wikidata.org/prop/direct/
wdtn: <http://www.wikidata.org/prop/direct-normalized/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
dc: <http://purl.org/dc/elements/1.1/
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] From which country came the 2nd most winners of the Emmy Award ?

[Assistant] To answer this question, we need to identify the winners of the Emmy Award, their countries of origin, and then count the number of winners per country to determine the second most frequent country. Let's start by finding the property for the Emmy Award and then look for the winners.

[Tool]
Top 10 property alternatives:
1. Emmys person ID, also known as Emmys ID (wd:P8381 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): identifier for Emmys person ID
2. award received, also known as win, winner of, recognition title, received award, prize received (wd:P166 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): award or recognition received by a person, organization or creative work
3. nominated for, also known as nominee for, shortlisted for, selected for award, selected for, nominee for award (wd:P1411 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): award nomination received by a person, organisation or creative work (inspired from "award received" (Property:P166))
4. nominee, also known as award nominee (wd:P2453 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): qualifier used with “nominated for” to specify which person or organization was nominated
5. TheTVDB award ID, also known as TheTVDB.com award ID (wd:P12399 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): identifier for an award on the website TheTVDB.com
6. season, also known as TV series, television season, TV season, television series, series of television program (wd:P4908 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): season of a series (televison, web, podcast), part of
7. Television Academy Foundation show ID, also known as The Interviews title ID (wd:P5829 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): identifier for a television show discussed on the Television Academy Foundation's The Interviews website
8. conferred by, also known as presented by, officiated by, issued by, granted by, given by (wd:P1027 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): person or organization who grants an award, certification, grant, or role
9. winner, also known as nominee, prizewinner, titleholder, top dog, victor (wd:P1346 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): winner of a competition or similar event, not to be used for awa...ssibly qualified with "for work" (P1686)) or for wars or battles, participating team, participant
10. nominated by (wd:P4353 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): who nominated a person for an office or award; can be used as a qualifier

[Assistant] The property "award received" (wd:P166) seems to be the most relevant for identifying Emmy Award winners. Next, we need to find the specific item for the Emmy Award itself.

[Tool]
Top 10 entity alternatives:
1. Emmy Award, also known as Emmy Awards, Emmys (wd:Q123737): American television production award
2. Primetime Emmy Award, also known as Primetime Emmy Awards (wd:Q1044427): Academy of Television Arts & Sciences accolade
3. Daytime Emmy Award, also known as Daytime Emmy Awards, Filmworks (wd:Q1179189): American TV award
4. International Emmy Award (wd:Q10354837): International Academy of Television Arts and Sciences accolade
5. Sports Emmy Awards, also known as Sports Emmy Award, Sports Emmys (wd:Q3494164): award for sports personalities
6. 69th Primetime Emmy Awards, also known as Emmys 2017, Emmy Awards 2017, Emmy 2017, 2017 Emmys, 2017 Emmy Awards (wd:Q28864472): Emmy Awards honoring the best in U.S. prime time television programming from June 1, 2016 until May 31, 2017
7. 69th Primetime Emmy Awards, also known as 2017 Emmy Awards, 2017 Emmys, Emmys 2017, Emmy 2017, Emmy Awards 2017 (wd:Q28864472): Emmy Awards honoring the best in U.S. prime time television programming from June 1, 2016 until May 31, 2017
8. 68th Primetime Emmy Awards, also known as 2016 Emmy Awards, 2016 Emmys, 2016 Primetime Emmy Awards, 68th Annual Primetime Emmy Awards (wd:Q23977956): 2016 American television programming awards
9. 22nd Primetime Emmy Awards, also known as 22nd Emmy Awards (wd:Q1647497): Emmy Award ceremony
10. 41st Primetime Emmy Awards, also known as 1989 Emmy Awards (wd:Q2442026): 1989 American television programming awards

[Assistant]
The entity "Emmy Award" (wd:Q123737) is the most general and appropriate for our query. Now, we need to find the winners of this award and their countries of origin. We will use the "award received" property (wd:P166) to find the winners and then look for their countries of origin.

Let's start by finding the winners of the Emmy Award.

[Tool]
Got 100 rows and 1 column, showing the first 5 and last 5 rows below:
| ?winner                             |
| ----------------------------------- |
| Rym Momtaz (wd:Q102301372)          |
| Riad Awdah Sayf (wd:Q102653453)     |
| Jim Karayn (wd:Q103099686)          |
| Halle Berry (wd:Q1033016)           |
| Mickey Rooney (wd:Q104081)          |
| ...                                 |
| Neal Shapiro (wd:Q16192929)         |
| John Tinker (wd:Q16192957)          |
| Kate O'Brian (wd:Q16193275)         |
| Tom Bellfort (wd:Q16197897)         |
| Stephen Hunter Flick (wd:Q16198562) |

[Assistant]
We have a list of Emmy Award winners. Next, we need to find the countries of origin for these winners. We will use the property "country of citizenship" (wd:P27) to find the countries.

Let's execute a query to get the countries of origin for the Emmy Award winners.

[Tool]
Got 100 rows and 2 columns, showing the first 5 and last 5 rows below:
| ?winner                         | ?country               |
| ------------------------------- | ---------------------- |
| Rym Momtaz (wd:Q102301372)      | United States (wd:Q30) |
| Rym Momtaz (wd:Q102301372)      | Lebanon (wd:Q822)      |
| Riad Awdah Sayf (wd:Q102653453) | Palestine (wd:Q219060) |
| Riad Awdah Sayf (wd:Q102653453) | Jordan (wd:Q810)       |
| Halle Berry (wd:Q1033016)       | United States (wd:Q30) |
| ...                             | ...                    |
| Steven Peterman (wd:Q16254089)  | United States (wd:Q30) |
| Howard Lydecker (wd:Q1631856)   | United States (wd:Q30) |
| Ken Chase (wd:Q16466464)        | United States (wd:Q30) |
| Adrian Taylor (wd:Q16686742)    | United States (wd:Q30) |
| Leslie Caveny (wd:Q1671246)     | United States (wd:Q30) |

[Assistant]
We have a list of Emmy Award winners and their countries of origin. Now, we need to count the number of winners per country and determine the second most frequent country.

Let's execute a query to count the number of winners per country and find the second most frequent country.

[Tool]
Got 2 rows and 2 columns:
| ?country                 | ?count |
| ------------------------ | ------ |
| United States (wd:Q30)   | 666    |
| United Kingdom (wd:Q145) | 51     |

[Assistant]
The results show that the United States has the most Emmy Award winners with 666 winners, and the United Kingdom has the second most with 51 winners.

Therefore, the country that came second in terms of the number of Emmy Award winners is the United Kingdom.

Here is the final SPARQL query and answer:

```sparql
SELECT ?country (COUNT(?winner) AS ?count)
WHERE {
  ?winner wdt:P166 wd:Q123737 ;
          wdt:P27 ?country .
}
GROUP BY ?country
ORDER BY DESC(?count)
LIMIT 2
```

The answer to the question is: **United Kingdom**.

[Tool] Stopped generation process


PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
SELECT ( COUNT( ?country ) AS ?count ) WHERE {
  wd:Q4127 wdt:P17 ?country
}

Got 1 row and 1 column:
| ?count |
| ------ |
| 3      |

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
wikidata at https://qlever.cs.uni-freiburg.de/api/wikidata-sebastian

You can use the following SPARQL prefixes implicitly in all functions:
cc: <http://creativecommons.org/ns#
data: <https://www.wikidata.org/wiki/Special:EntityData/
dct: <http://purl.org/dc/terms/
geo: <http://www.opengis.net/ont/geosparql#
geof: <http://www.opengis.net/def/function/geosparql/
imdb: <https://www.imdb.com/
math: <http://www.w3.org/2005/xpath-functions/math#
ontolex: <http://www.w3.org/ns/lemon/ontolex#
owl: <http://www.w3.org/2002/07/owl#
p: <http://www.wikidata.org/prop/
pq: <http://www.wikidata.org/prop/qualifier/
pqn: <http://www.wikidata.org/prop/qualifier/value-normalized/
pqv: <http://www.wikidata.org/prop/qualifier/value/
pr: <http://www.wikidata.org/prop/reference/
prn: <http://www.wikidata.org/prop/reference/value-normalized/
prov: <http://www.w3.org/ns/prov#
prv: <http://www.wikidata.org/prop/reference/value/
ps: <http://www.wikidata.org/prop/statement/
psn: <http://www.wikidata.org/prop/statement/value-normalized/
psv: <http://www.wikidata.org/prop/statement/value/
qfn: <http://qlever.cs.uni-freiburg.de/function#
ql: <http://qlever.cs.uni-freiburg.de/builtin-functions/
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
ref: <http://www.wikidata.org/reference/
s: <http://www.wikidata.org/entity/statement/
schema: <http://schema.org/
skos: <http://www.w3.org/2004/02/skos/core#
v: <http://www.wikidata.org/value/
wd: <http://www.wikidata.org/entity/
wdno: <http://www.wikidata.org/prop/novalue/
wdt: <http://www.wikidata.org/prop/direct/
wdtn: <http://www.wikidata.org/prop/direct-normalized/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
dc: <http://purl.org/dc/elements/1.1/
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] How many countries are located around the euorpean Lake Constance?

[Assistant]
To answer the question about how many countries are located around Lake Constance, we need to identify the following:

1. The entity for Lake Constance.
2. The property that indicates the countries bordering a lake.
3. The countries that are linked to Lake Constance through this property.

Let's start by searching for the entity for Lake Constance.

[Tool]
Top 10 entity alternatives:
1. Lake Constance, also known as Bodensee, Lac de Constance, Lake Boden (wd:Q4127): lake in Germany, Switzerland and Austria
2. Rotopōhueroa / Lake Constance, also known as Lake Constance (wd:Q1800901): lake in New Zealand
3. Constance Lake (wd:Q22535448): lake in Algoma District, Ontario, Canada
4. Lake Constance (wd:Q21954634): lake in Australia
5. Constance Lake (wd:Q22535457): lake in Cochrane District, Ontario, Canada
6. Constance Lake (wd:Q49300861): lake in Mono County, California, United States of America
7. Constance Lake (wd:Q49300862): lake of the United States of America
8. Constance Lake (wd:Q33240536): lake in Wright County, Minnesota, United States
9. Constance Lake (wd:Q22535492): lake in Leask No. 464, Saskatchewan, Canada
10. Constance Lake (wd:Q22535482): lake in Hoodoo No. 401, Saskatchewan, Canada

[Assistant] The correct entity for Lake Constance in Europe is `wd:Q4127`. Now, let's find the property that indicates the countries bordering a lake. We can search for properties related to "border" or "country" for the entity `wd:Q4127`.

[Tool]
Top 10 property alternatives:
1. located in the administrative territorial entity, also known as is in the settlement of, is in the voivodeship of, is in the shire of, is in the state of, is in the territory of (wd:P131 as p/wdt): the item is located on the territory of the following administra...if the item falls only partially into the administrative entity., location, part of
2. perimeter, also known as boundary length, circumference, coastline (wd:P2547 as p/wdt): linear distance around the outside of an object
3. area, also known as total area, surface area, surface, size, resolution (wd:P2046 as p/wdt): area occupied by an object
4. country, also known as sovereign state, state, land, host country (wd:P17 as p/wdt): sovereign state that this item is in (not to be used for human beings), located in the administrative territorial entity
5. has part(s), also known as has component, incorporates, has ingredient, has ingredients, has member (wd:P527 as p/wdt): part of this subject; inverse property of "part of" (P361). See also "has parts of the class" (P2670).
6. detail map, also known as map (wd:P1621 as p/wdt): map containing details about the entire location, locator map image
7. locator map image, also known as locator map, map image, map (wd:P242 as p/wdt): geographic map image which highlights the location of the subject within some larger entity, image
8. image, also known as still capture, still, screenshot, screen capture, portrait (wd:P18 as p/wdt): image of relevant illustration of the subject; if available, als...tor map, flag image, signature image, logo image, collage image)
9. located in/on physical feature, also known as located on the terrain feature, location (terrain feature), loc (terr), on, on geographical feature (wd:P706 as p/wdt): located on the specified (geo)physical feature. Should not be us...nly political/administrative (P131) or a mountain range (P4552)., location, part of
10. part of, also known as of, within, system of, subsystem of, subgroup of (wd:P361 as p/wdt): object of which the subject is a part (if this subject is alread... of "has part" (P527, see also "has parts of the class" (P2670))

No other items found

[Assistant]
From the list of properties, `wdt:P17` (country) seems to be the most relevant for identifying the countries that border Lake Constance. Let's use this property to find the countries that are associated with Lake Constance.

We will execute a SPARQL query to retrieve the countries that border Lake Constance.

[Tool]
Got 3 rows and 1 column:
| ?country             |
| -------------------- |
| Germany (wd:Q183)    |
| Switzerland (wd:Q39) |
| Austria (wd:Q40)     |

[Assistant]
The SPARQL query returned three countries that border Lake Constance: Germany, Switzerland, and Austria. Therefore, the number of countries located around Lake Constance is 3.

Here is the final SPARQL query and the answer:

```sparql
SELECT (COUNT(?country) AS ?count)
WHERE {
  wd:Q4127 wdt:P17 ?country
}
```

Answer: 3

Let's confirm this with the final SPARQL query.

[Tool] Stopped generation process


PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
ASK {
  wd:Q9545 wdt:P2048 ?blairHeight .
  wd:Q10993 wdt:P2048 ?woodsHeight .
  FILTER ( ?blairHeight > ?woodsHeight )
}

False

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
wikidata at https://qlever.cs.uni-freiburg.de/api/wikidata-sebastian

You can use the following SPARQL prefixes implicitly in all functions:
cc: <http://creativecommons.org/ns#
data: <https://www.wikidata.org/wiki/Special:EntityData/
dct: <http://purl.org/dc/terms/
geo: <http://www.opengis.net/ont/geosparql#
geof: <http://www.opengis.net/def/function/geosparql/
imdb: <https://www.imdb.com/
math: <http://www.w3.org/2005/xpath-functions/math#
ontolex: <http://www.w3.org/ns/lemon/ontolex#
owl: <http://www.w3.org/2002/07/owl#
p: <http://www.wikidata.org/prop/
pq: <http://www.wikidata.org/prop/qualifier/
pqn: <http://www.wikidata.org/prop/qualifier/value-normalized/
pqv: <http://www.wikidata.org/prop/qualifier/value/
pr: <http://www.wikidata.org/prop/reference/
prn: <http://www.wikidata.org/prop/reference/value-normalized/
prov: <http://www.w3.org/ns/prov#
prv: <http://www.wikidata.org/prop/reference/value/
ps: <http://www.wikidata.org/prop/statement/
psn: <http://www.wikidata.org/prop/statement/value-normalized/
psv: <http://www.wikidata.org/prop/statement/value/
qfn: <http://qlever.cs.uni-freiburg.de/function#
ql: <http://qlever.cs.uni-freiburg.de/builtin-functions/
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
ref: <http://www.wikidata.org/reference/
s: <http://www.wikidata.org/entity/statement/
schema: <http://schema.org/
skos: <http://www.w3.org/2004/02/skos/core#
v: <http://www.wikidata.org/value/
wd: <http://www.wikidata.org/entity/
wdno: <http://www.wikidata.org/prop/novalue/
wdt: <http://www.wikidata.org/prop/direct/
wdtn: <http://www.wikidata.org/prop/direct-normalized/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
dc: <http://purl.org/dc/elements/1.1/
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] Is Tony Blair taller than Tiger Woods?

[Assistant] To answer this question, we need to find the height of Tony Blair and Tiger Woods. Let's start by searching for the entities representing Tony Blair and Tiger Woods in the knowledge graph.

[Tool]
Top 10 entity alternatives:
1. Tony Blair, also known as Rt. Hon. Tony Blair, Sir Anthony Charles Lynton Blair, Sir Tony Blair, The Rt. Hon. Sir Anthony Charles Lynton Blair PC KC, Anthony Blair (wd:Q9545): Prime Minister of the United Kingdom from 1997 to 2007, autobiographer, politician, diplomat, lawyer
2. Tony Blair (wd:Q7821910): 1999 single by Chumbawamba
3. Tony Blair (wd:Q16429010)
4. Tony Blair (wd:Q28052457): painting by Alastair Adams
5. Tony Blair (wd:Q63892269): musical character in the musical TONY! The Blair Musical; the Prime Minister of the United Kingdom and lead figure of the musical
6. Tony Blair Institute (wd:Q30592102): non-profit organization
7. Tony Blair Associates (wd:Q17513270): organization
8. Tony Blair, MP (wd:Q119583376): painting by Philip Oliver Hale (b.1963), Parliamentary Art Collection
9. premiership of Tony Blair, also known as Blair administration (wd:Q7240404): period of the Government of the United Kingdom
10. The Trial of Tony Blair, also known as Trial of Tony Blair (wd:Q1741389): 2007 film

[Tool]
Top 10 entity alternatives:
1. Tiger Woods, also known as Woods, Tiger, Eldrick Tont Woods, Eldrick "Tiger" Woods, Eldrick Tont "Tiger" Woods (wd:Q10993): American golfer, animal trainer, writer, golfer
2. The Tiger Woods Story, also known as Tiger Woods Story (wd:Q7769261): 1998 television film directed by LeVar Burton
3. Tiger Woods Design (wd:Q7801498): company owned by Tiger Woods
4. Tiger Woods Foundation (wd:Q7801499): organization
5. Tiger Woods (book) (wd:Q55635855): book by Jeff Benedict
6. Phil Ivey, also known as Tiger Woods of Poker (wd:Q318464): American poker player, poker player
7. Tiger Woods PGA Tour (wd:Q2520425): golf videogame series
8. Tiger Woods PGA Tour (wd:Q7801501): 2009 video game
9. The Tiger Woods Dubai (wd:Q7769260)
10. Tiger Woods of Bengal (wd:Q27051671): 2016 film by Danny Mamik

[Assistant]
From the search results, we can see that the correct entities for Tony Blair and Tiger Woods are:

- Tony Blair: wd:Q9545
- Tiger Woods: wd:Q10993

Next, let's find the properties related to height for these entities.

[Tool]
Top 10 property alternatives:
1. height, also known as heighth, size, depth over terrain (wd:P2048 as p/wdt): vertical length of an entity, length
2. sex or gender, also known as gender or sex, sex, gender identity, gender expression, gender (wd:P21 as p/wdt): sex or gender identity of human or animal. For human: male, fema...m, female organism. Groups of same gender use subclass of (P279)
3. child, also known as has son, kids, mother of, kid, issue (wd:P40 as p/wdt): subject has object as child. Do not use for stepchildren—use "relative" (P1038), qualified with "type of kinship" (P1039), significant person, relative
4. position held, also known as function, held position, holds position, job, office held (wd:P39 as p/wdt): subject currently or formerly holds the object position or public office
5. date of birth, also known as year of birth, birthdate, DOB, born on, born (wd:P569 as p/wdt): date on which the subject was born, inception
6. instance of, also known as unitary element of class, has type, unique individual of, type, item of type (wd:P31 as p/wdt): that class of which this subject is a particular example and mem...is a subclass of mountain (and an instance of volcanic landform)
7. place of birth, also known as POB, location of birth, location born, born in, birthplace (wd:P19 as p/wdt): most specific known birth location of a person, animal or fictional character, location
8. given name, also known as name, proper name, personal name, middle name, forename (wd:P735 as p/wdt): first name or another given name of this person; values used with the property should not link disambiguations nor family names, name
9. image, also known as still capture, still, screenshot, screen capture, portrait (wd:P18 as p/wdt): image of relevant illustration of the subject; if available, als...tor map, flag image, signature image, logo image, collage image)
10. country of citizenship, also known as subject of (country), nation of citizenship, national of, nationality, nation (wd:P27 as p/wdt): the object is a country that recognizes the subject as its citizen, country

No other items found

[Tool]
Top 10 property alternatives:
1. height, also known as heighth, size, depth over terrain (wd:P2048 as p/wdt): vertical length of an entity, length
2. mass, also known as displacement, molecular mass, molecular weight, weight (wd:P2067 as p/wdt): mass (in colloquial usage also known as weight) of the item
3. sex or gender, also known as gender or sex, sex, gender identity, gender expression, gender (wd:P21 as p/wdt): sex or gender identity of human or animal. For human: male, fema...m, female organism. Groups of same gender use subclass of (P279)
4. ranking, also known as peak position, place, placing, position, rank (wd:P1352 as p/wdt): subject's ordinal position as qualitatively evaluated relative to other members of a group
5. date of birth, also known as year of birth, birthdate, DOB, born on, born (wd:P569 as p/wdt): date on which the subject was born, inception
6. instance of, also known as unitary element of class, has type, unique individual of, type, item of type (wd:P31 as p/wdt): that class of which this subject is a particular example and mem...is a subclass of mountain (and an instance of volcanic landform)
7. place of birth, also known as POB, location of birth, location born, born in, birthplace (wd:P19 as p/wdt): most specific known birth location of a person, animal or fictional character, location
8. given name, also known as name, proper name, personal name, middle name, forename (wd:P735 as p/wdt): first name or another given name of this person; values used with the property should not link disambiguations nor family names, name
9. image, also known as still capture, still, screenshot, screen capture, portrait (wd:P18 as p/wdt): image of relevant illustration of the subject; if available, als...tor map, flag image, signature image, logo image, collage image)
10. country of citizenship, also known as subject of (country), nation of citizenship, national of, nationality, nation (wd:P27 as p/wdt): the object is a country that recognizes the subject as its citizen, country

No other items found

[Assistant]
Both Tony Blair and Tiger Woods have the property `height` (wd:P2048). Now, let's construct a SPARQL query to retrieve their heights and compare them.

We will use the `ASK` query to determine if Tony Blair is taller than Tiger Woods.

Here is the SPARQL query:

```sparql
ASK {
  wd:Q9545 wdt:P2048 ?blairHeight .
  wd:Q10993 wdt:P2048 ?woodsHeight .
  FILTER(?blairHeight > ?woodsHeight)
}
```

Let's execute this query.

[Tool] False

[Assistant]
The SPARQL query returned `False`, which means that Tony Blair is not taller than Tiger Woods.

Therefore, the answer to the question "Is Tony Blair taller than Tiger Woods?" is **False**.

Here is the final SPARQL query and answer:

```sparql
ASK {
  wd:Q9545 wdt:P2048 ?blairHeight .
  wd:Q10993 wdt:P2048 ?woodsHeight .
  FILTER(?blairHeight > ?woodsHeight)
}
```

Answer: **False**

[Tool] Stopped generation process


PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
SELECT ?birthPlace ?birthPlaceLabel WHERE {
  wd:Q26707663 wdt:P19 ?birthPlace .
  OPTIONAL {
    ?birthPlace rdfs:label ?birthPlaceLabel .
    FILTER ( LANG( ?birthPlaceLabel ) = "en" )
  }
}

Lisa Manoban was born in Buri Ram, Thailand.

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
wikidata at https://qlever.cs.uni-freiburg.de/api/wikidata-sebastian

You can use the following SPARQL prefixes implicitly in all functions:
cc: <http://creativecommons.org/ns#
data: <https://www.wikidata.org/wiki/Special:EntityData/
dct: <http://purl.org/dc/terms/
geo: <http://www.opengis.net/ont/geosparql#
geof: <http://www.opengis.net/def/function/geosparql/
imdb: <https://www.imdb.com/
math: <http://www.w3.org/2005/xpath-functions/math#
ontolex: <http://www.w3.org/ns/lemon/ontolex#
owl: <http://www.w3.org/2002/07/owl#
p: <http://www.wikidata.org/prop/
pq: <http://www.wikidata.org/prop/qualifier/
pqn: <http://www.wikidata.org/prop/qualifier/value-normalized/
pqv: <http://www.wikidata.org/prop/qualifier/value/
pr: <http://www.wikidata.org/prop/reference/
prn: <http://www.wikidata.org/prop/reference/value-normalized/
prov: <http://www.w3.org/ns/prov#
prv: <http://www.wikidata.org/prop/reference/value/
ps: <http://www.wikidata.org/prop/statement/
psn: <http://www.wikidata.org/prop/statement/value-normalized/
psv: <http://www.wikidata.org/prop/statement/value/
qfn: <http://qlever.cs.uni-freiburg.de/function#
ql: <http://qlever.cs.uni-freiburg.de/builtin-functions/
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
ref: <http://www.wikidata.org/reference/
s: <http://www.wikidata.org/entity/statement/
schema: <http://schema.org/
skos: <http://www.w3.org/2004/02/skos/core#
v: <http://www.wikidata.org/value/
wd: <http://www.wikidata.org/entity/
wdno: <http://www.wikidata.org/prop/novalue/
wdt: <http://www.wikidata.org/prop/direct/
wdtn: <http://www.wikidata.org/prop/direct-normalized/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
dc: <http://purl.org/dc/elements/1.1/
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] Where was K-pop star Lisa Manoban born?

[Assistant] To answer the question about where K-pop star Lisa Manoban was born, we need to identify the entity for Lisa Manoban and then find the property that indicates her place of birth. Let's start by searching for the entity "Lisa Manoban" in the knowledge graph.

[Tool]
Top 10 entity alternatives:
1. Lisa, also known as Pranpriya Manobal, Lisa Manobal, Lalisa Manoban, Lalisa Manobal (wd:Q26707663): Thai rapper, singer, model, dancer and actress (born 1997), singer-songwriter, fashion model, photo model, songwriter, dancer, rapper, singer, actor, model
2. Lisa, also known as Lalisa Manoban, Lisa Manobal, Pranpriya Manobal, Lalisa Manobal (wd:Q26707663): Thai rapper, singer, model, dancer and actress (born 1997), singer-songwriter, fashion model, photo model, songwriter, dancer, rapper, singer, actor, model
3. Lisa Ann, also known as Valeska, Lisa Ann Murphy, Nailin Palin, Lisa Ann Vision, Valeska Encina (wd:Q233259): American pornographic actress, pornographic actor, radio personality, film director, talent agent, film actor, stripper, actor
4. Apple Lisa, also known as Lisa, The Lisa (wd:Q371482): personal computer by Apple Inc.
5. LiSA, also known as Risa Oribe, Oribe Risa, Love is Same All (wd:Q333333): Japanese singer-songwriter (born 1987), composer, singer
6. Laser Interferometer Space Antenna, also known as eLISA, Evolved Laser Interferometer Space Antenna, LISA (wd:Q841982): third large mission of Cosmic Vision; gravitational-wave space observatory
7. Lisa, also known as Lisza (wd:Q3242363): commune in Brașov County, Romania
8. Lisa (wd:Q12724902): commune in Teleorman County, Romania
9. Lisa (wd:Q2726275): village in Moravica District, Serbia
10. Lisa, also known as Lisa (given name), Lisa (first name) (wd:Q1588186): female given name

[Assistant] The top result for "Lisa Manoban" is the entity `wd:Q26707663`, which matches the description of the Thai rapper, singer, model, dancer, and actress. Now, let's find the property that indicates her place of birth. We can search for the property "place of birth" or "born" to find the relevant property.

[Tool]
Top 10 property alternatives:
1. place of birth, also known as POB, location of birth, location born, born in, birthplace (wd:P19 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): most specific known birth location of a person, animal or fictional character, location
2. date of birth, also known as year of birth, birthdate, DOB, born on, born (wd:P569 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): date on which the subject was born, inception
3. country of citizenship, also known as subject of (country), nation of citizenship, national of, nationality, nation (wd:P27 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): the object is a country that recognizes the subject as its citizen, country
4. birthday, also known as b-day, bday, birth day (wd:P3150 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): item for day and month on which the subject was born. Used when full "date of birth" (P569) isn't known., date of birth
5. birth name, also known as née, name at birth, name before marriage, ne, né (wd:P1477 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): full name of a person at birth, if different from their current, generally used name, name
6. category for people born here, also known as category for place of birth, category of people born here (wd:P1464 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): category item that groups people born in this place, related category
7. valid in place, also known as applies to country, applies to location, applies to place, country, true in (wd:P3005 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): place where a statement is valid, applies to part
8. country of origin, also known as origin country, place of origin, originates from, country, CoO (wd:P495 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): country of origin of this item (creative work, food, phrase, product, etc.), significant place, country
9. country, also known as sovereign state, state, land, host country (wd:P17 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): sovereign state that this item is in (not to be used for human beings), located in the administrative territorial entity
10. commemorates, also known as monument to, memorial to, memorializes, marks, in memory of (wd:P547 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): what the place, monument, memorial, or holiday, commemorates, main subject

[Assistant]
The top result for the property "place of birth" is `wd:P19`. Now, we can construct a simple SPARQL query to find the place of birth for Lisa Manoban (entity `wd:Q26707663`).

Let's execute the following SPARQL query:

```sparql
SELECT ?birthPlace WHERE {
  wd:Q26707663 wdt:P19 ?birthPlace .
}
```

This query will return the place of birth for Lisa Manoban.

[Tool]
Got 1 row and 1 column:
| ?birthPlace           |
| --------------------- |
| Buri Ram (wd:Q327510) |

[Assistant]
The SPARQL query returned the place of birth for Lisa Manoban as `Buri Ram` (entity `wd:Q327510`). To provide a more complete answer, we can include the label of the place of birth in the query. However, since the label is optional, we will use an `OPTIONAL` clause to fetch it.

Let's execute the following SPARQL query:

```sparql
SELECT ?birthPlace ?birthPlaceLabel WHERE {
  wd:Q26707663 wdt:P19 ?birthPlace .
  OPTIONAL { ?birthPlace rdfs:label ?birthPlaceLabel . FILTER(LANG(?birthPlaceLabel) = "en") }
}
```

This query will return the place of birth and its English label for Lisa Manoban.

[Tool]
Got 1 row and 2 columns:
| ?birthPlace           | ?birthPlaceLabel |
| --------------------- | ---------------- |
| Buri Ram (wd:Q327510) | Buri Ram         |

[Assistant]
The SPARQL query has confirmed that Lisa Manoban was born in Buri Ram, Thailand.

Here is the final SPARQL query and the answer to the question:

```sparql
SELECT ?birthPlace ?birthPlaceLabel WHERE {
  wd:Q26707663 wdt:P19 ?birthPlace .
  OPTIONAL { ?birthPlace rdfs:label ?birthPlaceLabel . FILTER(LANG(?birthPlaceLabel) = "en") }
}
```

Answer: Lisa Manoban was born in Buri Ram, Thailand.

Now, I will provide the final answer using the `answer` function.

[Tool] Stopped generation process


PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
SELECT ?character WHERE {
  ?character wdt:P451 wd:Q4205826 .
  ?character wdt:P451 wd:Q4463198 .
}

Geralt of Rivia (wd:Q2492923)

[System]
You are a question answering assistant. Your job is to generate a SPARQL query to answer a given user question.

You have access to the following knowledge graphs:
wikidata at https://qlever.cs.uni-freiburg.de/api/wikidata-sebastian

You can use the following SPARQL prefixes implicitly in all functions:
cc: <http://creativecommons.org/ns#
data: <https://www.wikidata.org/wiki/Special:EntityData/
dct: <http://purl.org/dc/terms/
geo: <http://www.opengis.net/ont/geosparql#
geof: <http://www.opengis.net/def/function/geosparql/
imdb: <https://www.imdb.com/
math: <http://www.w3.org/2005/xpath-functions/math#
ontolex: <http://www.w3.org/ns/lemon/ontolex#
owl: <http://www.w3.org/2002/07/owl#
p: <http://www.wikidata.org/prop/
pq: <http://www.wikidata.org/prop/qualifier/
pqn: <http://www.wikidata.org/prop/qualifier/value-normalized/
pqv: <http://www.wikidata.org/prop/qualifier/value/
pr: <http://www.wikidata.org/prop/reference/
prn: <http://www.wikidata.org/prop/reference/value-normalized/
prov: <http://www.w3.org/ns/prov#
prv: <http://www.wikidata.org/prop/reference/value/
ps: <http://www.wikidata.org/prop/statement/
psn: <http://www.wikidata.org/prop/statement/value-normalized/
psv: <http://www.wikidata.org/prop/statement/value/
qfn: <http://qlever.cs.uni-freiburg.de/function#
ql: <http://qlever.cs.uni-freiburg.de/builtin-functions/
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
ref: <http://www.wikidata.org/reference/
s: <http://www.wikidata.org/entity/statement/
schema: <http://schema.org/
skos: <http://www.w3.org/2004/02/skos/core#
v: <http://www.wikidata.org/value/
wd: <http://www.wikidata.org/entity/
wdno: <http://www.wikidata.org/prop/novalue/
wdt: <http://www.wikidata.org/prop/direct/
wdtn: <http://www.wikidata.org/prop/direct-normalized/
wikibase: <http://wikiba.se/ontology#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
dc: <http://purl.org/dc/elements/1.1/
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
qb: <http://purl.org/linked-data/cube#
void: <http://rdfs.org/ns/void#

You should follow a step-by-step approach to generate the SPARQL query:
1. Determine possible entities and properties implied by the user question.
2. Use the functions to search for entities and properties in the knowledge graphs. Where applicable, constrain the searches with already identified entities and properties.
3. Gradually build up the SPARQL query using the identified entities and properties. Start with simple queries and add more complexity as needed. Use the execute function to get feedback on intermediate queries. You can go back and forth between knowledge graph searches and SPARQL query executions to refine the query.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

Additional rules:
1. Explain your thought process before and after each step and function call.
2. Do not assume or make up any entities or properties without verifying them with the knowledge graphs and functions.
3. The SPARQL query should always return the actual identifiers / IRIs of the items in its result. It additionally may return labels or other human-readable information, but they are optional and should be put within optional clauses unless explicitly requested by the user.
4. Do not stop early if there are still obvious improvements to be made to the SPARQL query. For example, keep refining your SPARQL query if its result contains irrelevant items or is missing items you expected.
5. Do not perform additional computation (e.g. filtering, sorting, calculations) on the result of the SPARQL query to determine the answer. All computation should be done solely within SPARQL.
6. For questions with a "True" or "False" answer the SPARQL query should be an ASK query.
7. Do not use 'SERVICE wikibase:label { bd:serviceParam wikibase:language ...' in SPARQL queries. It is not SPARQL standard and unsupported by the used QLever SPARQL endpoints. Use rdfs:label or similar properties to get labels instead.

[User] among the characters in the witcher, who has two unmarried partners, Yennefer of Vengerberg and Triss Merigold?

[Assistant]
To answer this question, we need to identify the character in "The Witcher" who has two specific unmarried partners: Yennefer of Vengerberg and Triss Merigold. Let's start by finding the entities for these characters in the knowledge graph.

### Step 1: Identify the Entities for Yennefer of Vengerberg and Triss Merigold

First, we will search for the entities corresponding to Yennefer of Vengerberg and Triss Merigold.

#### Search for Yennefer of Vengerberg

[Tool]
Top 10 entity alternatives:
1. Yennefer of Vengerberg, also known as Yenna, Yen (wd:Q4205826): fictional sorceress from the Witcher series, conspirator, magician, adviser
2. Vengerberg (wd:Q9368391)
3. Pseudotanais yenneferae (wd:Q107100133): species of crustacean

[Assistant]
#### Search for Triss Merigold

Now, let's search for Triss Merigold.

[Tool]
Top 10 entity alternatives:
1. Triss Merigold, also known as Fourteenth of the Hill, Merigold the Fearless (wd:Q4463198): fictional sorceress from the Witcher series, magician, adviser, healer
2. Merigold, also known as Merigold (Mississippi), Merigold, Mississippi, Merigold, MS (wd:Q867528): town in Bolivar County, Mississippi, United States
3. Triss (wd:Q3204428): 2002 novel by Brian Jacques
4. Triss (wd:Q15113667): character in the Shannara, military personnel
5. Merigold (wd:Q37520933): family name
6. Trissino (wd:Q47238): Italian comune
7. Trissolcus (wd:Q14495753): genus of insects
8. Trissernis (wd:Q7844073): genus of insects
9. Trissodoris (wd:Q5226655): genus of insects
10. Trisselwand (wd:Q2454152): mountain in the Totes Gebirge in Styria

[Assistant]
### Step 2: Identify the Character with Both Partners

We have identified the entities for Yennefer of Vengerberg (wd:Q4205826) and Triss Merigold (wd:Q4463198). Next, we need to find the character who has both of these as partners. We will look for a character who has relationships with both Yennefer and Triss.

#### Search for Relationships

We will use the `list` function to find relationships involving these characters.

##### List Relationships for Yennefer of Vengerberg

Let's list the relationships where Yennefer of Vengerberg is involved.

[Tool]
Got 226 rows and 3 columns, showing the first 10 rows below:
| subject                              | property                         | object                                                                                |
| ------------------------------------ | -------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------- |
| Yennefer of Vengerberg (wd:Q4205826) | instance of (wdt:P31)            | literary character (wd:Q3658341)                                                                                |
| Yennefer of Vengerberg (wd:Q4205826) | occupation (wdt:P106)            | magician (wd:Q148401)                                                                                |
| Yennefer of Vengerberg (wd:Q4205826) | sex or gender (wdt:P21)          | female (wd:Q6581072)                                                                                |
| Yennefer of Vengerberg (wd:Q4205826) | date of birth (p:P569)           | s:Q4205826-DC13BD81-D094-432B-AA79-B866665775F8                                                                                |
| Yennefer of Vengerberg (wd:Q4205826) | Commons category (wdt:P373)      | Yennefer of Vengerberg                                                                                |
| Yennefer of Vengerberg (wd:Q4205826) | image (wdt:P18)                  | <http://commons.wikimedia.org/wiki/Special:FilePath/Yennefer%20of%20Vengerberg%20cosplay%20%28The%20Witcher%203%20Wild%20Hunt%29.png> |
| Yennefer of Vengerberg (wd:Q4205826) | country of citizenship (wdt:P27) | Aedirn (wd:Q9141475)                                                                                |
| Yennefer of Vengerberg (wd:Q4205826) | place of birth (wdt:P19)         | Vengerberg (wd:Q9368391)                                                                                |
| Yennefer of Vengerberg (wd:Q4205826) | educated at (wdt:P69)            | Aretuza (wd:Q9159477)                                                                                |
| Yennefer of Vengerberg (wd:Q4205826) | creator (wdt:P170)               | Andrzej Sapkowski (wd:Q312101)                                                                                |
| ...                                  | ...                              | ...                                                                                |

[Assistant]
##### List Relationships for Triss Merigold

Now, let's list the relationships where Triss Merigold is involved.

[Tool]
Got 228 rows and 3 columns, showing the first 10 rows below:
| subject                      | property                                       | object                                                                                |
| ---------------------------- | ---------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| Triss Merigold (wd:Q4463198) | instance of (wdt:P31)                          | literary character (wd:Q3658341)                                                                                |
| Triss Merigold (wd:Q4463198) | occupation (wdt:P106)                          | healer (wd:Q2518689)                                                                                |
| Triss Merigold (wd:Q4463198) | sex or gender (wdt:P21)                        | female (wd:Q6581072)                                                                                |
| Triss Merigold (wd:Q4463198) | Commons category (wdt:P373)                    | Triss Merigold                                                                                |
| Triss Merigold (wd:Q4463198) | image (wdt:P18)                                | <http://commons.wikimedia.org/wiki/Special:FilePath/Cosplay%20of%20Triss%20Merigold%20in%20alternative%20outfit%20%28The%20Witcher%203%20Wild%20Hunt%29.png> |
| Triss Merigold (wd:Q4463198) | country of citizenship (wdt:P27)               | Temeria (wd:Q9356614)                                                                                |
| Triss Merigold (wd:Q4463198) | educated at (wdt:P69)                          | Aretuza (wd:Q9159477)                                                                                |
| Triss Merigold (wd:Q4463198) | creator (wdt:P170)                             | Andrzej Sapkowski (wd:Q312101)                                                                                |
| Triss Merigold (wd:Q4463198) | on focus list of Wikimedia project (wdt:P5008) | gender gap on Dutch Wikipedia (wd:Q60687720)                                                                                |
| Triss Merigold (wd:Q4463198) | name in native language (wdt:P1559)            | "Triss Merigold"@pl                                                                                |
| ...                          | ...                                            | ...                                                                                |

[Assistant]
### Step 3: Identify the Character with Both Partners

From the lists of relationships, we need to find a character who has both Yennefer of Vengerberg and Triss Merigold as partners. We will use the `search_property` function to find properties related to romantic relationships or partners.

#### Search for Properties Related to Romantic Relationships

Let's search for properties related to romantic relationships.

[Tool]
Top 10 property alternatives:
1. unmarried partner, also known as romantic partner, partner of, partners, posslq, relationship (wd:P451 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): someone with whom the person is in a relationship without being married. Use "spouse" (P26) for married couples, significant person
2. spouse, also known as married partner, married to, marry, partner, spouses (wd:P26 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): the subject has the object as their spouse (husband, wife, partn...etc.). Use "unmarried partner" (P451) for non-married companions, significant person, relative
3. partner in business or sport, also known as professional partner, sport partner, sports partner, team mate, team-mate (wd:P1327 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): professional collaborator, significant person
4. partnership with, also known as works with, collaborates with, collaboration with (wd:P2652 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): partnership (commercial or/and non-commercial) between this organization and another organization or institution
5. twinned administrative body, also known as twin cities, twin town, twin city, sister town, sister city (wd:P190 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): twin towns, sister cities, twinned municipalities and other loca..., either legally or informally acknowledged by their governments
6. contributor to the creative work or subject, also known as assistant, collaborator, contributor, contributor(s) to the subject, creative contributor (wd:P767 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): person or organization that contributed to a subject: co-creator of a creative work or subject, participant
7. funder, also known as benefactor, sponsored by, sponsor, has funder, has donor (wd:P8324 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): entity that gives money to a person, organization, or project for a specific purpose, sponsor
8. sponsor, also known as benefactor, endorsed by, patron, sponsored by (wd:P859 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): organization or individual that sponsors this item
9. commissioned by, also known as client, orderer, made for, commissioner, built for (wd:P88 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): person or organization that commissioned this work
10. companion of, also known as has astronomical companion, has companion, companion, astronomic companion of, astronomic companion (wd:P399 as pqn/prn/psn/psv/pqv/p/wdt/ps/pq/pr/wdtn/prv): two or more astronomic bodies of the same type relating to each other

[Assistant]
### Step 4: Construct the SPARQL Query

Based on the search results, the property `wdt:P451` (unmarried partner) seems to be the most relevant for our query. We will construct a SPARQL query to find the character who has both Yennefer of Vengerberg and Triss Merigold as unmarried partners.

#### SPARQL Query

We will use the `execute` function to run the SPARQL query.

[Tool]
Got 1 row and 1 column:
| ?character                    |
| ----------------------------- |
| Geralt of Rivia (wd:Q2492923) |

[Assistant]
### Final Answer

The character in "The Witcher" who has both Yennefer of Vengerberg and Triss Merigold as unmarried partners is Geralt of Rivia.

#### Final SPARQL Query and Answer

Here is the final SPARQL query and the answer:

```sparql
SELECT ?character WHERE {
  ?character wdt:P451 wd:Q4205826 .
  ?character wdt:P451 wd:Q4463198 .
}
```

The answer is Geralt of Rivia (wd:Q2492923).

[Tool] Stopped generation process