PREFIX fb: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?event ?name ?startDate WHERE {
  fb:m.0xbm fb:sports.sports_team.championships ?event .
  OPTIONAL {
    ?event fb:type.object.name ?name .
  }
  OPTIONAL {
    ?event fb:time.event.start_date ?startDate .
  }
  FILTER ( CONTAINS( LCASE( STR( ?name ) ) , "league" ) )
}
ORDER BY ?startDate

Got 6 rows and 3 columns:
| event                                      | name                             | startDate |
| ------------------------------------------ | -------------------------------- | --------- |
| 1986–87 Football League Cup (fb:m.0h_f0j5) | 1986–87 Football League Cup (en) |           |
| 1986–87 Football League Cup (fb:m.0h_f0j5) | Football League Cup 1986/87 (nl) |           |
| 1986–87 Football League Cup (fb:m.0h_f0j5) | League Cup 1986/87 (de)          |           |
| 1992–93 Football League Cup (fb:m.0hhr2_3) | 1992–93 Football League Cup (en) |           |
| 1992–93 Football League Cup (fb:m.0hhr2_3) | Football League Cup 1992/93 (nl) |           |
| 1992–93 Football League Cup (fb:m.0hhr2_3) | League Cup 1992/93 (de)          |           |

Despite refining the query to filter for league titles using event names containing 'Premier League' or 'First Division', the Freebase data only returns 'Football League Cup' events, which are not league championships. There is no direct or reliable way in the current Freebase schema to query only Arsenal's league title wins, as the data does not distinguish league championships from other types of championships in a structured way. Therefore, it is not possible to answer the question with a precise SPARQL query using the available data.

[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:
freebase at http://galera:7002

You can use the following SPARQL prefixes implicitly in all functions:
fb: <http://rdf.freebase.com/ns/
fbkey: <http://rdf.freebase.com/key/
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
owl: <http://www.w3.org/2002/07/owl#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
skos: <http://www.w3.org/2004/02/skos/core#
dct: <http://purl.org/dc/terms/
dc: <http://purl.org/dc/elements/1.1/
prov: <http://www.w3.org/ns/prov#
schema: <http://schema.org/
geo: <http://www.opengis.net/ont/geosparql#
geosparql: <http://www.opengis.net/ont/geosparql#
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
wikibase: <http://wikiba.se/ontology#
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] when did arsenal won the league?

[Assistant]
To answer this question, I need to:

1. Identify the entity for "Arsenal" (the football club).
2. Identify the property for "won the league"—this likely refers to winning the top English football league (Premier League or First Division).
3. Find the years Arsenal won the league.

First, I'll search for the "Arsenal" entity in Freebase.

[Tool]
Top 10 entity alternatives:
1. Arsenal F.C., also known as Woolwich Arsenal, The Gunners, Royal Arsenal, Dial Square, Arsenal Gunners (fb:m.0xbm): Arsenal Football Club is a Premier League football club in Hollo...ion football club in the world, valued at £1.3 billion, in 2014., has type Football team
2. Arsenal (fb:m.01b41j): An arsenal is a place where arms and ammunition are made, mainta...l vehicle which is only operational in certain times of the day., has type Building function
3. Arsenal (fb:m.0dmjtl): Arsenal is a Soviet film by Ukrainian director Alexander Dovzhen...pacifist sentiments in films by Jean Renoir and Stanley Kubrick., has type Film
4. Arsenal (fb:m.01nd5l9): Arsenal is an electronic music band consisting of Belgian musici...rican and Latin American rhythms to pop, hip hop and indie rock., has type Musical Group
5. Roy Harper, also known as Arsenal (fb:m.034tm2): Roy Harper is a fictional superhero in the DC Comics Universe. T...ird season as the partner, sidekick and student of Oliver Queen., Roy Harper is a fictional character from 2012 television series Arrow., has type Comic Book Character
6. Arsenal (fb:m.0bmkhbs): Arsenal is a ghost station on the Paris métro, situated on line ...stille and Quai de la Rapée, in the 4th arrondissement of Paris., has type Location
7. Arsenal (fb:m.02vqq6l): Arsenal is a fictional character, a robot that appears in comic ...n Iron Man #114 and was created by Bill Mantlo and Keith Giffen., has type Comic Book Character
8. Arsenal (fb:m.03f0qjh): Arsenal was an American band, formed by the former Big Black gui...actory Smog Is a Sign of Progress, also on Touch and Go Records., has type Musical Group
9. Arsenal (fb:m.02rpz8v): The Arsenal is a former military complex of buildings in the sou...ely a few workshop buildings within the courtyard were replaced., has type Building
10. Arsenal, also known as Arsenal de Metz (fb:m.0k31b9b): The Arsenal Concert Hall is a cultural venue dedicated specially...showroom and concert hall for the Gregorian chant, respectively., has type Venue

[Assistant]
The correct entity for Arsenal Football Club is fb:m.0xbm.

Next, I need to identify the property that links Arsenal F.C. to league titles or championships, specifically for winning the English top division (Premier League or First Division). I'll search for properties related to "league title" or "championship" for this entity.

[Tool]
Top 10 property alternatives:
1. League (fb:soccer.football_team.league): links to type Football League Participation, part of Football team schema
2. Sport (fb:sports.sports_team.sport): part of Sports Team schema, links to type Sport
3. Championships (fb:sports.sports_team.championships): links to type Sports League Championship Event, part of Sports Team schema
4. Sports Team Location (fb:sports.sports_team.location): links to type Sports Team Location, part of Sports Team schema
5. Player statistics (fb:soccer.football_team.player_statistics): links to type Football player stats, part of Football team schema
6. Matches (fb:soccer.football_team.matches): links to type Football Match, part of Football team schema
7. Roster (fb:sports.sports_team.roster): links to type Sports team roster, part of Sports Team schema
8. Borrowed Players (fb:soccer.football_team.borrowed_players): links to type Football Player Loan, part of Football team schema
9. Season rankings (fb:base.schemastaging.sports_team_extra.season_rankings): links to type Sports league season ranking, part of Sports team extra schema
10. Arena/Stadium (fb:sports.sports_team.arena_stadium): links to type Sports Facility, part of Sports Team schema

No other items found

[Assistant]
The most relevant property appears to be "Championships" (fb:sports.sports_team.championships), which links to Sports League Championship Events.

Next, I will list some triples for Arsenal F.C. (fb:m.0xbm) with the "Championships" property to see what kind of data is available and how the years of winning are represented.

[Tool]
Got 21 rows and 3 columns, showing the first 10 rows below:
| subject                  | property                                            | object                            |
| ------------------------ | --------------------------------------------------- | --------------------------------- |
| Arsenal F.C. (fb:m.0xbm) | Championships (fb:sports.sports_team.championships) | 2013–14 FA Cup (fb:m.0vptrcs)     |
| Arsenal F.C. (fb:m.0xbm) | Championships (fb:sports.sports_team.championships) | 2014 FA Cup Final (fb:m.0107yw1k) |
| Arsenal F.C. (fb:m.0xbm) | Championships (fb:sports.sports_team.championships) | 2004–05 FA Cup (fb:m.03ntmq0)     |
| Arsenal F.C. (fb:m.0xbm) | Championships (fb:sports.sports_team.championships) | 2001–02 FA Cup (fb:m.03wcjy2)     |
| Arsenal F.C. (fb:m.0xbm) | Championships (fb:sports.sports_team.championships) | 2002–03 FA Cup (fb:m.03wbzvj)     |
| Arsenal F.C. (fb:m.0xbm) | Championships (fb:sports.sports_team.championships) | 1992–93 FA Cup (fb:m.03qp0n6)     |
| Arsenal F.C. (fb:m.0xbm) | Championships (fb:sports.sports_team.championships) | 1997–98 FA Cup (fb:m.03wcr3x)     |
| Arsenal F.C. (fb:m.0xbm) | Championships (fb:sports.sports_team.championships) | 2003 FA Cup Final (fb:m.0gq9vh)   |
| Arsenal F.C. (fb:m.0xbm) | Championships (fb:sports.sports_team.championships) | 2005 FA Cup Final (fb:m.0f5959)   |
| Arsenal F.C. (fb:m.0xbm) | Championships (fb:sports.sports_team.championships) | 1970–71 FA Cup (fb:m.04jjvq6)     |
| ...                      | ...                                                 | ...                               |

[Assistant]
The results show that the "Championships" property includes various cup wins (e.g., FA Cup), but the question specifically asks about league titles. I need to distinguish between league championships and cup wins.

To do this, I will check the types or properties of the objects linked from "Championships" to see which ones represent league titles (such as "Premier League" or "First Division"). I'll list some triples for one of these objects to see what properties are available. Let's try with "2013–14 FA Cup" (fb:m.0vptrcs) and see if there's a property indicating the competition type.

[Tool]
Got 175 rows and 3 columns, showing the first 10 rows below:
| subject                       | property                                                            | object                                                                   |
| ----------------------------- | ------------------------------------------------------------------- | ------------------------------------------------------------------------ |
| 2013–14 FA Cup (fb:m.0vptrcs) | Type (fb:type.object.type)                                          | Topic (fb:common.topic)                                                  |
| 2013–14 FA Cup (fb:m.0vptrcs) | Key (fb:type.object.key)                                            | /wikipedia/de/FA_Cup_2013$002F14                                         |
| 2013–14 FA Cup (fb:m.0vptrcs) | Name (fb:type.object.name)                                          | 2013-14 FA Cup (tr)                                                      |
| 2013–14 FA Cup (fb:m.0vptrcs) | Topic equivalent webpage (fb:common.topic.topic_equivalent_webpage) | <http://de.wikipedia.org/wiki/FA_Cup_2013/14>                            |
| 2013–14 FA Cup (fb:m.0vptrcs) | Notable for (fb:common.topic.notable_for)                           | fb:g.1q5hz92cq                                                           |
| 2013–14 FA Cup (fb:m.0vptrcs) | Notable types (fb:common.topic.notable_types)                       | Sports League Season (fb:m.025b7qw)                                      |
| 2013–14 FA Cup (fb:m.0vptrcs) | Description (fb:common.topic.description)                           | 2013-14 FA Cup, Football Associa...rsenal takımı şampiyon olmuştur. (tr) |
| 2013–14 FA Cup (fb:m.0vptrcs) | Article (fb:common.topic.article)                                   | fb:m.0vptrcy                                                             |
| 2013–14 FA Cup (fb:m.0vptrcs) | Champion (fb:sports.sports_championship_event.champion)             | Arsenal F.C. (fb:m.0xbm)                                                 |
| 2013–14 FA Cup (fb:m.0vptrcs) | Awards (fb:sports.sports_league_season.awards)                      | fb:m.010lkdyj                                                            |
| ...                           | ...                                                                 | ...                                                                      |

[Assistant]
The "2013–14 FA Cup" event has a property "Notable types" (fb:common.topic.notable_types) with value "Sports League Season" (fb:m.025b7qw), but this doesn't distinguish between league and cup competitions.

To filter for league titles, I should look for objects whose name or type indicates "Premier League" or "First Division". I'll search for "Premier League" and "First Division" entities to see if they are used as types or properties for these championship events.

[Tool]
Top 10 entity alternatives:
1. Premier League, also known as Premiership, FA Premier League, FAPL, EPL, English Premier League (fb:m.02_tc): The Premier League is an English professional league for men's a... 1888, and take advantage of a lucrative television rights deal., has type Sports Association
2. Premier League (fb:m.03c9l6l): Premier League, also known as Domino's League, is the highest ba...ur-team playoff round winner of the second-level First Division., has type Sports Association
3. Premier League (fb:m.0b6d7tx): The Premier League is the top tier men's basketball league in Ir...ord for most championships, having won the competition 11 times., has type Sports Association
4. Premier League (fb:m.027yh51): The Premier League is the second tier of speedway in the United ...remier League Fours and the Premier League Riders' Championship., has type Sports Association
5. Premier League (fb:m.0cgd_3): The Premier League is an Australian semi-professional basketball...league for the Adelaide teams competing in the NBL and the WNBL., has type Sports Association
6. Premier League (fb:m.0ftw_f9): has type Musical Artist
7. Ukrainian Premier League (fb:m.073q37): The Ukrainian Premier League is the highest division of Ukrainia...kiv, Dnipro Dnipropetrovsk, Karpaty Lviv and Chornomorets Odesa., has type Football League
8. Scottish Premier League, also known as SPL (fb:m.01h0cn): The Scottish Premier League was the top level league competition... Old Firm clubs, Celtic and Rangers won the league championship., has type Football League
9. 2007–08 Premier League (fb:m.02qjps3): The 2007–08 Premier League season was the sixteenth since its es...nt scored hat-tricks during Wigan's 5–3 home win over Blackburn., has type Football League Season
10. Azerbaijan Premier League (fb:m.03nrtvd): The Azerbaijan Premier League, currently named Topaz Premyer Liq...bağ, who won the title in the 2014-15 season for the third time., has type Football League

[Tool]
Top 10 entity alternatives:
1. Eerste Divisie, also known as First Division, Jupiler League (fb:m.067hz4): The Eerste Divisie is the second-highest tier of football in the... after a five-year sponsorship deal with the Dutch Yellow Pages., has type Sports Association
2. First Division (fb:m.0133mtz0): has type Musical Release
3. First Division (fb:m.0wcx32l): has type Musical Artist
4. First Division (fb:m.0132k59c): has type Musical Album
5. First division (fb:m.03xnkn): First division is a term that has had various meanings, at vario...s teams and given to each of the teams finishing in fifth place.
6. Cypriot First Division (fb:m.083rn3): The Cypriot First Division championship is the top tier football...e competition in Cyprus, run by the Cyprus Football Association., has type Football League
7. Russian Football National League, also known as Russian First Division, Football Championship of the National League (fb:m.07bgdt): The Russian National Football League, formerly called Russian Fi...clubs are relegated to the Russian Professional Football League., has type Sports Association
8. Scottish Football League First Division, also known as Scottish First Division (fb:m.02q338): The Scottish Football League First Division was the second tier in the Scottish football league system between 1975 and 2013., has type Football League
9. Norwegian First Division, also known as 1. divisjon, førstedivisjon (fb:m.06h829): The Norwegian First Division is the second highest division of t...g cooperative OBOS. Formally, it was a semi-professional league., has type Sports Association
10. Azerbaijan First Division (fb:m.03nsfzh): The Azerbaijan First Division is the second highest professional... Azerbaijani professional football. The division is run by AFFA., has type Sports Association

[Assistant]
The relevant entity for the English top division is "Premier League" (fb:m.02_tc). The "First Division" is ambiguous, but historically the English First Division was the top league before the Premier League's formation in 1992. However, there is no clear entity for the English First Division in the search results.

Given this, I should look for championship events associated with Arsenal F.C. where the event is a season of the "Premier League" (fb:m.02_tc) or, for earlier years, check if the event's name contains "First Division".

I'll now check the properties of one of the championship event objects linked to Arsenal, such as "1997–98 FA Cup" (fb:m.03wcr3x), to see if there is a property indicating the competition or league.

[Tool]
Got 129 rows and 3 columns, showing the first 10 rows below:
| subject                       | property                                                            | object                                                                   |
| ----------------------------- | ------------------------------------------------------------------- | ------------------------------------------------------------------------ |
| 1997–98 FA Cup (fb:m.03wcr3x) | Type (fb:type.object.type)                                          | Topic (fb:common.topic)                                                  |
| 1997–98 FA Cup (fb:m.03wcr3x) | Key (fb:type.object.key)                                            | /en/fa_cup_1997_98                                                       |
| 1997–98 FA Cup (fb:m.03wcr3x) | Name (fb:type.object.name)                                          | 1997-98 FA Cup (tr)                                                      |
| 1997–98 FA Cup (fb:m.03wcr3x) | Topic equivalent webpage (fb:common.topic.topic_equivalent_webpage) | <http://de.wikipedia.org/wiki/FA_Cup_1997/98>                            |
| 1997–98 FA Cup (fb:m.03wcr3x) | Notable for (fb:common.topic.notable_for)                           | fb:g.125fmxfj4                                                           |
| 1997–98 FA Cup (fb:m.03wcr3x) | Notable types (fb:common.topic.notable_types)                       | Sports League Season (fb:m.025b7qw)                                      |
| 1997–98 FA Cup (fb:m.03wcr3x) | Description (fb:common.topic.description)                           | 1997-98 FA Cup, Football Associa...rsenal takımı şampiyon olmuştur. (tr) |
| 1997–98 FA Cup (fb:m.03wcr3x) | Article (fb:common.topic.article)                                   | fb:m.03wcr40                                                             |
| 1997–98 FA Cup (fb:m.03wcr3x) | Also known as (fb:common.topic.alias)                               | FA Cup 1997-98 (en)                                                      |
| 1997–98 FA Cup (fb:m.03wcr3x) | Start date (fb:time.event.start_date)                               | 1997 (xsd:gYear)                                                         |
| ...                           | ...                                                                 | ...                                                                      |

[Assistant]
The properties for the "1997–98 FA Cup" event do not directly indicate the competition type, but the name property is present. Therefore, to identify league wins, I can filter the championship events for Arsenal F.C. where the event's name contains "Premier League" or "First Division".

I'll write a SPARQL query to get all championship events for Arsenal F.C., along with their names and start dates, and filter for those whose names contain "Premier League" or "First Division".

[Tool] Got no rows and 3 columns

[Assistant]
No results were returned when filtering by "Premier League" or "First Division" in the event names. This suggests that the league championship events may not have those exact phrases in their names, or the relevant data is structured differently.

To investigate further, I'll retrieve all championship events for Arsenal F.C. along with their names and start dates, without filtering, to see what names are used for league titles.

[Tool]
Got 147 rows and 3 columns, showing the first 5 and last 5 rows below:
| event                                      | name                                     | startDate             |
| ------------------------------------------ | ---------------------------------------- | --------------------- |
| 2013–14 FA Cup (fb:m.0vptrcs)              | Кубок Англії з футболу 2013—2014 (uk)    |                       |
| 2013–14 FA Cup (fb:m.0vptrcs)              | 2013/14球季英格兰足总杯 (zh)                     |                       |
| 2013–14 FA Cup (fb:m.0vptrcs)              | 2013–14 FA Cup (en)                      |                       |
| 2013–14 FA Cup (fb:m.0vptrcs)              | 2013-14 FA Cup (tr)                      |                       |
| 1992–93 Football League Cup (fb:m.0hhr2_3) | League Cup 1992/93 (de)                  |                       |
| ...                                        | ...                                      | ...                   |
| 2014 FA Cup Final (fb:m.0107yw1k)          | Final Piala FA 2014 (id)                 | 2014-05-17 (xsd:date) |
| 2014 FA Cup Final (fb:m.0107yw1k)          | Τελικός Κυπέλλου Αγγλίας 2014 (el)       | 2014-05-17 (xsd:date) |
| 2014 FA Cup Final (fb:m.0107yw1k)          | Финал Кубка Англии по футболу 2014 (ru)  | 2014-05-17 (xsd:date) |
| 2014 FA Cup Final (fb:m.0107yw1k)          | Фінал кубка Англії з футболу 2014 (uk)   | 2014-05-17 (xsd:date) |
| 2014 FA Cup Final (fb:m.0107yw1k)          | فینال جام حذفی فوتبال انگلستان ۲۰۱۴ (fa) | 2014-05-17 (xsd:date) |

[Assistant]
The results show that many of the event names are in different languages and refer to cup competitions (e.g., "FA Cup", "League Cup"). It seems that league titles may not be explicitly labeled as "Premier League" or "First Division" in the event names.

To refine the approach, I'll look for event names that contain "League" (which might capture both "Premier League" and "Football League" titles) and check if any of these are league championship events.

[Tool]
Got 6 rows and 3 columns:
| event                                      | name                             | startDate |
| ------------------------------------------ | -------------------------------- | --------- |
| 1986–87 Football League Cup (fb:m.0h_f0j5) | 1986–87 Football League Cup (en) |           |
| 1986–87 Football League Cup (fb:m.0h_f0j5) | Football League Cup 1986/87 (nl) |           |
| 1986–87 Football League Cup (fb:m.0h_f0j5) | League Cup 1986/87 (de)          |           |
| 1992–93 Football League Cup (fb:m.0hhr2_3) | 1992–93 Football League Cup (en) |           |
| 1992–93 Football League Cup (fb:m.0hhr2_3) | Football League Cup 1992/93 (nl) |           |
| 1992–93 Football League Cup (fb:m.0hhr2_3) | League Cup 1992/93 (de)          |           |

[Assistant]
The results only show "Football League Cup" wins, which are not league championships but rather a cup competition (the League Cup).

Given that the "Championships" property does not seem to directly list league titles, another approach is needed. Arsenal's league wins may be represented differently in Freebase, possibly under a different property or via a different relationship.

I'll search for properties related to "winner" or "champion" for Arsenal F.C. to see if there is a more direct way to find league wins.

[Tool]
Top 10 property alternatives:
1. Awards Won (fb:award.award_winner.awards_won): part of Award Winner schema, links to type Award Honor
2. Awards (fb:sports.sports_award_winner.awards): part of Sports League Award Winner schema, links to type Sports League Award
3. Name (fb:type.object.name): part of Object schema, links to type Text
4. Championships (fb:sports.sports_team.championships): links to type Sports League Championship Event, part of Sports Team schema
5. Key (fb:type.object.key): part of Object schema, links to type Key
6. Matches (fb:soccer.football_team.matches): links to type Football Match, part of Football team schema
7. Sport (fb:sports.sports_team.sport): part of Sports Team schema, links to type Sport
8. League (fb:soccer.football_team.league): links to type Football League Participation, part of Football team schema
9. Member of (fb:sports.sports_team.league): links to type Sports league participation, part of Sports Team schema
10. Has value (fb:freebase.valuenotation.has_value): part of Value Notation schema, links to type Property

No other items found

[Tool]
Top 10 property alternatives:
1. Championships (fb:sports.sports_team.championships): links to type Sports League Championship Event, part of Sports Team schema
2. League (fb:soccer.football_team.league): links to type Football League Participation, part of Football team schema
3. Sport (fb:sports.sports_team.sport): part of Sports Team schema, links to type Sport
4. Key (fb:type.object.key): part of Object schema, links to type Key
5. Member of (fb:sports.sports_team.league): links to type Sports league participation, part of Sports Team schema
6. Roster (fb:sports.sports_team.roster): links to type Sports team roster, part of Sports Team schema
7. Name (fb:type.object.name): part of Object schema, links to type Text
8. Matches (fb:soccer.football_team.matches): links to type Football Match, part of Football team schema
9. Owner(s) (fb:sports.professional_sports_team.owner_s): part of Professional Sports Team schema, links to type Sports Team Owner
10. Manager (fb:soccer.football_team.manager): links to type Football Team Management Tenure, part of Football team schema

No other items found

[Tool]
Top 10 property alternatives:
1. Championship (fb:sports.sports_league_season.championship): links to type Sports League Championship Event, part of Sports League Season schema
2. Championship (fb:user.rcheramy.default_domain.hockey_season.championship1): links to type Hockey Championship, part of Hockey Season schema
3. Championship (fb:sports.sports_championship_event.championship): part of Sports League Championship Event schema, links to type Sports League Championship
4. Championship (fb:sports.sports_league.championship): links to type Sports League Championship, part of Sports Association schema
5. League (fb:user.szaijan.fantasy_football.season.league): part of Season schema, links to type League
6. League (fb:user.szaijan.fantasy_football.scoring.league): part of Scoring schema, links to type League
7. League (fb:user.szaijan.fantasy_football.draft.league): links to type League, part of Draft schema
8. League (fb:user.xleioo.winning_night.soccer.league): links to type Option List, part of Soccer schema
9. League (fb:basketball.basketball_conference.league): part of Basketball Conference schema, links to type Sports Association
10. League (fb:baseball.baseball_division.league): part of Baseball Division schema, links to type Baseball League

[Tool]
Top 10 property alternatives:
1. Championship (fb:user.rcheramy.default_domain.hockey_season.championship1): links to type Hockey Championship, part of Hockey Season schema
2. Championship (fb:sports.sports_league.championship): links to type Sports League Championship, part of Sports Association schema
3. Championship (fb:sports.sports_league_season.championship): links to type Sports League Championship Event, part of Sports League Season schema
4. Championship (fb:sports.sports_championship_event.championship): part of Sports League Championship Event schema, links to type Sports League Championship
5. Champion (fb:user.rcheramy.default_domain.hockey_championships.champion): part of Hockey Championships schema, links to type Hockey Team
6. Champion (fb:boxing.boxing_title_tenure.champion): part of Boxing title tenure schema, links to type Boxer
7. Champion (fb:sports.sports_championship_event.champion): part of Sports League Championship Event schema, links to type Sports Team
8. Champion (fb:base.x2010fifaworldcupsouthafrica.fifa_world_cup.champion): part of FIFA World Cup schema, links to type Football team
9. Champion (fb:user.rcheramy.default_domain.hockey_championship.champion): part of Hockey Championship schema, links to type Hockey Team
10. Current Champions (fb:user.rcheramy.default_domain.hockey_league.current_champions): part of Hockey League schema, links to type Hockey Team

[Tool]
Top 10 entity alternatives:
1. Football League First Division (fb:m.02qd8m): The First Division was a division of the Football League between...4 rebrand it has been known as the Football League Championship., has type Sports League Championship
2. Scottish Football League First Division, also known as Scottish First Division (fb:m.02q338): The Scottish Football League First Division was the second tier in the Scottish football league system between 1975 and 2013., has type Football League
3. 1990–91 Football League First Division (fb:m.0ds9792): Statistics of Football League First Division in the 1990-91 season.
4. 1969–70 Football League First Division (fb:m.0dsb_w6): Statistics of Football League First Division in the 1969–70 season.
5. 1989–90 Football League First Division (fb:m.0ds8wmh): Liverpool overhauled a greatly improved Aston Villa side to win ...of the division despite briefly topping the league in September.
6. Gozo Football League First Division, also known as ONVOL First Division (fb:m.07k6mvt): The Gozitan First Division, also known as Melita First Division ...y of matches are played at the Gozo Stadium or at Sannat Ground., has type Sports Association
7. 2003–04 Football League First Division (fb:m.0gmdd_x): The 2003-04 Football League First Division is the eleventh seaso...le and eleventh season under its current league division format., has type Football League Season
8. 2002–03 Football League First Division, also known as 2002-03 Football League First Division (fb:m.0hnc6p7): The 2002–03 Football League First Division was the tenth season ... still have finished in second place had been this been applied., has type Sports League Season
9. 1997–98 Football League First Division (fb:m.0h51rk3): The 1997–98 Football League First Division was the second season... and fifth season under the then-current league division format.
10. Western Football League Division One, also known as Western Football League First Division (fb:m.0b3sys): has type Sports Association

[Tool]
Top 10 entity alternatives:
1. Catalan football championship, also known as Catalan football champions (fb:m.0270f3b): The Catalan football championship was a football competition in ...ng Francisco Franco's dictatorship during the Spanish Civil War., has type Football League
2. Campeonato Regional Centro, also known as Madrid football champions (fb:m.04n3d5w): Campeonato Centro was the most important regional football compe...n the community of Madrid in the first half of the 20th century., has type Organization
3. Championship football (fb:m.06709wt): has type Book
4. Macedonian Football Champions (fb:m.0gk_1jk): has type Structure
5. English football sponsorship (fb:m.07_n40): Corporate sponsorship of major English football competitions dat...Watney Cup and Texaco Cup were sponsored during the early 1970s.
6. Champions Indoor Football (fb:m.011qbw2q): Champions Indoor Football is a professional indoor American foot...ne team from the Indoor Football League and two expansion teams.
7. Football League Championship, also known as npower Championship, The Championship (fb:m.0355pl): The Football League Championship is the second-highest division ...unners up, and Norwich City were the promotion play-off winners., has type Football League
8. English football league system (fb:m.02qj_7): The English football league system, also known as the football p...sed men's clubs play outside the English football league system., has type Football League System
9. Nordic Football Championship (fb:m.02pntr7): The Nordic Football Championship was an international football c...layed in 2000–2001, Iceland and the Faroe Islands also competed.
10. Baltic football championship (fb:m.064kf1w): The Baltic football championship was the highest association foo...the Baltic Sea, its clubs mostly based on the shore of this sea., has type Organization

[Tool]
Top 10 entity alternatives:
1. 2007-08 Premier Arena Soccer League winter season (fb:m.010p18c7): has type Sports League Season
2. Premier League, also known as Premiership, FA Premier League, FAPL, EPL, English Premier League (fb:m.02_tc): The Premier League is an English professional league for men's a... 1888, and take advantage of a lucrative television rights deal., has type Sports Association
3. Premier League (fb:m.03c9l6l): Premier League, also known as Domino's League, is the highest ba...ur-team playoff round winner of the second-level First Division., has type Sports Association
4. Premier League (fb:m.0b6d7tx): The Premier League is the top tier men's basketball league in Ir...ord for most championships, having won the competition 11 times., has type Sports Association
5. Premier League (fb:m.027yh51): The Premier League is the second tier of speedway in the United ...remier League Fours and the Premier League Riders' Championship., has type Sports Association
6. Premier League (fb:m.0cgd_3): The Premier League is an Australian semi-professional basketball...league for the Adelaide teams competing in the NBL and the WNBL., has type Sports Association
7. Premier League (fb:m.0ftw_f9): has type Musical Artist
8. Arsenal's players and fans celeb...win with an open-top bus parade. (fb:m.03tg1yj)
9. Ukrainian Premier League (fb:m.073q37): The Ukrainian Premier League is the highest division of Ukrainia...kiv, Dnipro Dnipropetrovsk, Karpaty Lviv and Chornomorets Odesa., has type Football League
10. Scottish Premier League, also known as SPL (fb:m.01h0cn): The Scottish Premier League was the top level league competition... Old Firm clubs, Celtic and Rangers won the league championship., has type Football League

[Tool]
Got 1,222 rows and 3 columns, showing the first 10 rows below:
| subject                                      | property                                                   | object                                          |
| -------------------------------------------- | ---------------------------------------------------------- | ----------------------------------------------- |
| UEFA Euro 2012 (fb:m.06t1s0)                 | Championship (fb:sports.sports_league_season.championship) | Creating History Together (fb:g.11bc143_63)     |
| UEFA Euro 1992 (fb:m.02pys3)                 | Championship (fb:sports.sports_league_season.championship) | UEFA Euro 1992 Final (fb:m.047sm9q)             |
| 2008–09 UEFA Champions League (fb:m.02rb6vc) | Championship (fb:sports.sports_league_season.championship) | 2009 UEFA Champions League Final (fb:m.02wvl24) |
| 2009–10 UEFA Champions League (fb:m.03w9fdg) | Championship (fb:sports.sports_league_season.championship) | 2010 UEFA Champions League Final (fb:m.03cs7ck) |
| UEFA Euro 1988 (fb:m.02q3hx)                 | Championship (fb:sports.sports_league_season.championship) | UEFA Euro 1988 Final (fb:m.04csyxb)             |
| 2007–08 UEFA Champions League (fb:m.02pvdq7) | Championship (fb:sports.sports_league_season.championship) | 2008 UEFA Champions League Final (fb:m.02pr48h) |
| UEFA Euro 1980 (fb:m.02rj3d)                 | Championship (fb:sports.sports_league_season.championship) | UEFA Euro 1980 Final (fb:m.05b6qby)             |
| 2006–07 UEFA Champions League (fb:m.0cf_zz)  | Championship (fb:sports.sports_league_season.championship) | 2007 UEFA Champions League Final (fb:m.02pcl1m) |
| UEFA Euro 1968 (fb:m.02sr2l)                 | Championship (fb:sports.sports_league_season.championship) | UEFA Euro 1968 Final (fb:m.06zttg2)             |
| 2011–12 UEFA Champions League (fb:m.09v1p4p) | Championship (fb:sports.sports_league_season.championship) | 2012 UEFA Champions League Final (fb:m.05f62g_) |
| ...                                          | ...                                                        | ...                                             |

[Tool]
Got 21 rows and 3 columns, showing the first 10 rows below:
| subject                           | property                                                | object                   |
| --------------------------------- | ------------------------------------------------------- | ------------------------ |
| 2013–14 FA Cup (fb:m.0vptrcs)     | Champion (fb:sports.sports_championship_event.champion) | Arsenal F.C. (fb:m.0xbm) |
| 2014 FA Cup Final (fb:m.0107yw1k) | Champion (fb:sports.sports_championship_event.champion) | Arsenal F.C. (fb:m.0xbm) |
| 2004–05 FA Cup (fb:m.03ntmq0)     | Champion (fb:sports.sports_championship_event.champion) | Arsenal F.C. (fb:m.0xbm) |
| 2001–02 FA Cup (fb:m.03wcjy2)     | Champion (fb:sports.sports_championship_event.champion) | Arsenal F.C. (fb:m.0xbm) |
| 2002–03 FA Cup (fb:m.03wbzvj)     | Champion (fb:sports.sports_championship_event.champion) | Arsenal F.C. (fb:m.0xbm) |
| 1992–93 FA Cup (fb:m.03qp0n6)     | Champion (fb:sports.sports_championship_event.champion) | Arsenal F.C. (fb:m.0xbm) |
| 1997–98 FA Cup (fb:m.03wcr3x)     | Champion (fb:sports.sports_championship_event.champion) | Arsenal F.C. (fb:m.0xbm) |
| 2003 FA Cup Final (fb:m.0gq9vh)   | Champion (fb:sports.sports_championship_event.champion) | Arsenal F.C. (fb:m.0xbm) |
| 2005 FA Cup Final (fb:m.0f5959)   | Champion (fb:sports.sports_championship_event.champion) | Arsenal F.C. (fb:m.0xbm) |
| 1970–71 FA Cup (fb:m.04jjvq6)     | Champion (fb:sports.sports_championship_event.champion) | Arsenal F.C. (fb:m.0xbm) |
| ...                               | ...                                                     | ...                      |

[Tool]
Got 1 row and 3 columns:
| subject                  | property                                | object       |
| ------------------------ | --------------------------------------- | ------------ |
| Arsenal F.C. (fb:m.0xbm) | League (fb:soccer.football_team.league) | fb:m.0gcqrjc |

[Tool]
Got 6 rows and 3 columns:
| subject      | property                                                | object                                                                  |
| ------------ | ------------------------------------------------------- | ----------------------------------------------------------------------- |
| fb:m.0gcqrjc | Type (fb:type.object.type)                              | Football League Participation (fb:soccer.football_league_participation) |
| fb:m.0gcqrjc | Has no value (fb:freebase.valuenotation.has_no_value)   | To (fb:m.066mrqp)                                                       |
| fb:m.0gcqrjc | League (fb:soccer.football_league_participation.league) | Premier League (fb:m.02_tc)                                             |
| fb:m.0gcqrjc | Team (fb:soccer.football_league_participation.team)     | Arsenal F.C. (fb:m.0xbm)                                                |
| fb:m.0gcqrjc | From (fb:soccer.football_league_participation.from)     | 1992–93 FA Premier League (fb:m.04b7yg)                                 |
| fb:m.0gcqrjc | rdf:type                                                | Football League Participation (fb:soccer.football_league_participation) |

[Tool]
Got 1,262 rows and 3 columns, showing the first 10 rows below:
| subject                     | property                                                            | object                                                                                |
| --------------------------- | ------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------- |
| Premier League (fb:m.02_tc) | Type (fb:type.object.type)                                          | Topic (fb:common.topic)                                                                             |
| Premier League (fb:m.02_tc) | Key (fb:type.object.key)                                            | /en/fa_premier_league                                                                               |
| Premier League (fb:m.02_tc) | Name (fb:type.object.name)                                          | Anglijas futbola Premjerlīga (lv)                                                                   |
| Premier League (fb:m.02_tc) | Topic equivalent webpage (fb:common.topic.topic_equivalent_webpage) | <http://ar.wikipedia.org/wiki/%27%44%2F%48%31%4A_%27%44%25%46%2C%44%4A%32%4A_%27%44%45%45%2A%27%32> |
| Premier League (fb:m.02_tc) | Notable for (fb:common.topic.notable_for)                           | fb:g.125d4xg28                                                                                |
| Premier League (fb:m.02_tc) | Notable types (fb:common.topic.notable_types)                       | Sports Association (fb:m.025b7ln)                                                                   |
| Premier League (fb:m.02_tc) | Description (fb:common.topic.description)                           | Anglijas Premjerlīga ir augstākā...kums ir Barclays Premier League. (lv)                            |
| Premier League (fb:m.02_tc) | Article (fb:common.topic.article)                                   | fb:m.02_tp                                                                                |
| Premier League (fb:m.02_tc) | Also known as (fb:common.topic.alias)                               | Barclays English Premier League (vi)                                                                |
| Premier League (fb:m.02_tc) | Has value (fb:freebase.valuenotation.has_value)                     | Founders (fb:m.02_77l6)                                                                             |
| ...                         | ...                                                                 | ...                                                                                |

[Tool]
Top 10 entity alternatives:
1. Major League Baseball titles leaders (fb:m.0119zd5y): At the end of each Major League Baseball season, the league lead...ur or more titles in a category. Active players are highlighted.
2. Major League Baseball titles streaks (fb:m.0118dn8t): At the end of each Major League Baseball season, the league lead...s without leading either league. Active streaks are highlighted.
3. Major League Baseball titles leaders (fb:m.094fzq6)
4. Major League Baseball titles streaks (fb:m.094fzpt)
5. Arsenal F.C. league record by opponent (fb:m.0vpmnp3): Arsenal Football Club is an English professional association foo...y formed Premier League, of which they were an inaugural member., has type Organization
6. Arsenal F.C., also known as Woolwich Arsenal, The Gunners, Royal Arsenal, Dial Square, Arsenal Gunners (fb:m.0xbm): Arsenal Football Club is a Premier League football club in Hollo...ion football club in the world, valued at £1.3 billion, in 2014., has type Football team
7. League, also known as Leagues (fb:m.050f99): A league is a unit of length. It was long common in Europe and L...ddle Ages, many values have been specified in several countries., has type Unit of Length
8. Arsenal (fb:m.01b41j): An arsenal is a place where arms and ammunition are made, mainta...l vehicle which is only operational in certain times of the day., has type Building function
9. Chariots of Fire, also known as Chariots of Fire, Charriots of Fire, Main Theme From "Chariots of Fire", Main Theme From “Chariots of Fire”, Momenti di gloria: Titles (fb:m.0ls3qk): has type Musical Recording
10. Chariots of Fire, also known as Titles, (Theme From) Chariots of Fire, Chariots of Fire: Main Theme (fb:m.0dnwwd): "Chariots of Fire" is an instrumental theme written and recorded...eme music for various television programmes and sporting events., has type Composition

[Tool] Got no rows and 3 columns

[Assistant]
Despite several approaches, the Freebase data does not seem to directly encode Arsenal's league title wins in a way that is easily queryable by season or event. The available properties and entities either focus on cup wins or do not distinguish league championships clearly.

Given the structure of the data, the best available approach is to extract all championship events for Arsenal F.C. and present their names and dates, allowing the user to identify league wins from the list. However, this does not fully answer the question as intended.

Here is the best SPARQL query so far, which lists all championship events (including cups and leagues) Arsenal F.C. has won, along with their names and start dates:

```sparql
SELECT DISTINCT ?event ?name ?startDate WHERE {
  fb:m.0xbm fb:sports.sports_team.championships ?event .
  OPTIONAL { ?event fb:type.object.name ?name . }
  OPTIONAL { ?event fb:time.event.start_date ?startDate . }
} ORDER BY ?startDate
```

Would you like to see this list, or do you want to refine the question further? If you want only league wins, you may need to manually filter the results for events that correspond to league titles.

[User]
Feedback (status=refine):
The current SPARQL query retrieves all championship events won by Arsenal F.C., but it does not specifically filter for league titles, which is what the user asked for. The answer acknowledges this limitation, but ideally, the query should attempt to filter for league championships only (e.g., by checking for events that are instances of the English top division or Premier League). If this is not possible due to data limitations, the answer should clearly state this and, if possible, show an attempt to filter for league events using available properties (such as event type or name containing 'League'). The query could be refined by adding a FILTER clause to select only events whose name includes 'League' or 'Premier League', or by checking for a more specific type if available in Freebase.

[Assistant]
Thank you for the feedback. I agree that the query should attempt to filter for league titles, not just all championships.

Step-by-step, here's how I'll refine the approach:

1. The property fb:sports.sports_team.championships links Arsenal F.C. to all championship events, but includes cups as well.
2. The event names sometimes contain "League", but previous attempts showed that this mostly returns "League Cup" (not a league title).
3. The entity for the English top division is "Premier League" (fb:m.02_tc), and for the historical top division, "Football League First Division" (fb:m.02qd8m).
4. I will try to filter championship events for Arsenal F.C. where the event is a season of either the Premier League or the Football League First Division.

To do this, I need to check if championship events have a property linking them to the league (e.g., fb:sports.sports_league_season.league). I'll search for properties of a known league season entity, such as "1990–91 Football League First Division" (fb:m.0ds9792), to see if there is a property linking it to the league.

[Tool]
Got 135 rows and 3 columns, showing the first 10 rows below:
| subject                                               | property                                                            | object                                                                   |
| ----------------------------------------------------- | ------------------------------------------------------------------- | ------------------------------------------------------------------------ |
| 1990–91 Football League First Division (fb:m.0ds9792) | Type (fb:type.object.type)                                          | Topic (fb:common.topic)                                                  |
| 1990–91 Football League First Division (fb:m.0ds9792) | Key (fb:type.object.key)                                            | /wikipedia/de/Football_League_First_Division_1990$002F91                 |
| 1990–91 Football League First Division (fb:m.0ds9792) | Name (fb:type.object.name)                                          | 1990–91 Football League First Division (en)                              |
| 1990–91 Football League First Division (fb:m.0ds9792) | Topic equivalent webpage (fb:common.topic.topic_equivalent_webpage) | <http://de.wikipedia.org/wiki/Football_League_First_Division_1990/91>    |
| 1990–91 Football League First Division (fb:m.0ds9792) | Description (fb:common.topic.description)                           | 1990/91 was het 93ste seizoen in...mpetitie. Arsenal werd kampioen. (nl) |
| 1990–91 Football League First Division (fb:m.0ds9792) | Article (fb:common.topic.article)                                   | fb:m.0ds9796                                                             |
| 1990–91 Football League First Division (fb:m.0ds9792) | rdf:type                                                            | Topic (fb:common.topic)                                                  |
| 1990–91 Football League First Division (fb:m.0ds9792) | fb:time.event.next_in_series                                        | 1991–92 Football League (fb:m.0412s12)                                   |
| 1990–91 Football League First Division (fb:m.0ds9792) | fbkey:wikipedia.de                                                  | Football_League_First_Division_1990$002F91                               |
| 1990–91 Football League First Division (fb:m.0ds9792) | fbkey:wikipedia.de_id                                               | 2853235                                                                  |
| ...                                                   | ...                                                                 | ...                                                                      |

[Tool] Got no rows and 3 columns

[Assistant]
It appears that the property fb:sports.sports_league_season.league is not present for this season entity, so I cannot directly link the season to the league using this property.

Given this, the best available approach is to filter championship events for Arsenal F.C. where the event name contains "Premier League" or "First Division", as these are the most likely indicators of league titles in the available data. This is not perfect, but it is the closest approximation possible with the current structure.

Here is the refined SPARQL query:

```sparql
SELECT DISTINCT ?event ?name ?startDate WHERE {
  fb:m.0xbm fb:sports.sports_team.championships ?event .
  OPTIONAL { ?event fb:type.object.name ?name . }
  OPTIONAL { ?event fb:time.event.start_date ?startDate . }
  FILTER(
    CONTAINS(LCASE(STR(?name)), "premier league") ||
    CONTAINS(LCASE(STR(?name)), "first division")
  )
} ORDER BY ?startDate
```

I will now run this query and provide the answer.

[Tool] Got no rows and 3 columns

[Tool]
Got 6 rows and 3 columns:
| event                                      | name                             | startDate |
| ------------------------------------------ | -------------------------------- | --------- |
| 1986–87 Football League Cup (fb:m.0h_f0j5) | 1986–87 Football League Cup (en) |           |
| 1986–87 Football League Cup (fb:m.0h_f0j5) | Football League Cup 1986/87 (nl) |           |
| 1986–87 Football League Cup (fb:m.0h_f0j5) | League Cup 1986/87 (de)          |           |
| 1992–93 Football League Cup (fb:m.0hhr2_3) | 1992–93 Football League Cup (en) |           |
| 1992–93 Football League Cup (fb:m.0hhr2_3) | Football League Cup 1992/93 (nl) |           |
| 1992–93 Football League Cup (fb:m.0hhr2_3) | League Cup 1992/93 (de)          |           |

[Tool] Stopped generation process

[User]
Feedback (status=done):
The system's explanation is correct: the Freebase data available does not distinguish between league championships and other types of championships in a structured way. The attempted SPARQL query sensibly tries to filter for events with 'league' in the name, but this only returns 'Football League Cup' events, which are not league titles. There is no reliable way to answer the question with the current data, so the system's output and explanation are appropriate.


PREFIX fb: <http://rdf.freebase.com/ns/>
SELECT DISTINCT ?spouse WHERE {
  fb:m.02pn7 fb:people.person.spouse_s ?marriage .
  ?marriage fb:people.marriage.spouse ?spouse .
  FILTER ( ?spouse != fb:m.02pn7 )
}

Got 2 rows and 1 column:
| spouse                 |
| ---------------------- |
| Xerxes I (fb:m.0cjm1)  |
| Ahasuerus (fb:m.0hy00) |

Esther's husband is given as both Ahasuerus (fb:m.0hy00) and Xerxes I (fb:m.0cjm1) in Freebase. These two are often considered the same historical figure, with Ahasuerus being the biblical name and Xerxes I the historical name, but Freebase lists them as separate entities.

[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:
freebase at http://galera:7002

You can use the following SPARQL prefixes implicitly in all functions:
fb: <http://rdf.freebase.com/ns/
fbkey: <http://rdf.freebase.com/key/
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
owl: <http://www.w3.org/2002/07/owl#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
skos: <http://www.w3.org/2004/02/skos/core#
dct: <http://purl.org/dc/terms/
dc: <http://purl.org/dc/elements/1.1/
prov: <http://www.w3.org/ns/prov#
schema: <http://schema.org/
geo: <http://www.opengis.net/ont/geosparql#
geosparql: <http://www.opengis.net/ont/geosparql#
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
wikibase: <http://wikiba.se/ontology#
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] who was esther's husband?

[Assistant]
Let's break down the question:

1. The user is asking about "Esther's husband." This likely refers to the biblical Esther, whose husband is traditionally known as King Ahasuerus (commonly identified as Xerxes I of Persia).
2. I need to identify the correct "Esther" entity in Freebase, confirm it refers to the biblical figure, and then find the property that links her to her husband.

First, I will search for the entity "Esther" in Freebase to identify the correct one.

[Tool]
Top 10 entity alternatives:
1. Madonna, also known as Nonnie, Madonna Ciccone Ritchie, Madonna Louise Ciccone, Madonna Louise Ciccone Ritchie, Madonna Louise Veronica Ciccone (fb:m.01vs_v8): Madonna Louise Ciccone is an American singer, songwriter, actres...mmy Award winners Ray of Light and Confessions on a Dance Floor., has type Celebrity
2. Orphan, also known as Siroce, Órfã, Sierota, Ottolapsi, Orphan - Das Waisenkind (fb:m.047trvs): Orphan is a 2009 American psychological thriller film directed b...reviews, although Fuhrman's performance as Esther was acclaimed., has type Film
3. Esther (fb:m.02pn7): Esther, born Hadassah, is the eponymous heroine of the Book of E...y is the basis for the celebration of Purim in Jewish tradition., has type Art Subject
4. Esther Cañadas, also known as Esther, esther_canadas, Esther Canadas (fb:m.09h0bt): Esther Cañadas is a Spanish actress and model., has type Film actor
5. Esther, also known as Die Bibel - Esther, The Bible: Esther, Raamattu: Ester, Prigipissa Esthir, I Vivlos - Esthir (fb:m.0bwgtxf): Esther, also known as The Bible: Esther, is a 1999 American-Ital...ti as Vashti. It aired in the United States on November 5, 2000., has type Film
6. Esther, also known as Esther Adam (fb:m.0qb5mjj): has type Musical Artist
7. Chan Ye-cheng, also known as Esther Wong, Yee-Gan Chan, Ye-cheng Chan, Esther, Chan Ye Cheng (fb:m.0jz54f): Chan Ye-cheng is a film producer and the wife of director Wong Kar-wai., has type Film producer
8. Esther, also known as HWV.50 (fb:m.0dqcw7): Esther is an oratorio by George Frideric Handel. It is generally...d in 1718, but was heavily revised into a full oratorio in 1732., has type Composition
9. Esther (fb:m.03ckgxs): Esther is a play in three acts written in 1689 by the French dra...d to Racine's 1691 biblical play written for Maintenon, Athalie., has type Play
10. Esther... The Girl Who Became Queen, also known as Esther, Esther, the Girl Who Became Queen, Esther... The Girl Who Became Queen (fb:m.06z3_j7): A VeggieTales of Queen Esther and her struggle to save her peopl... the Island of Perpetual Tickling (IPT) by her husband the king., has type TV Episode

[Assistant]
From the search results, the most likely entity for the biblical Esther is "Esther, born Hadassah, is the eponymous heroine of the Book of Esther" with the ID fb:m.02pn7. This matches the context of the question.

Next, I need to find the property that links Esther (fb:m.02pn7) to her husband. I will search for properties related to "husband" for this entity.

[Tool]
Top 10 property alternatives:
1. Spouse (or domestic partner) (fb:people.person.spouse_s): links to type Marriage, part of Person schema
2. Name (fb:type.object.name): part of Object schema, links to type Text
3. Gender (fb:people.person.gender): part of Person schema, links to type Gender
4. Image (fb:common.topic.image): part of Topic schema, links to type Image
5. Place of birth (fb:people.person.place_of_birth): links to type Location, part of Person schema
6. Key (fb:type.object.key): part of Object schema, links to type Key
7. Religion (fb:people.person.religion): links to type Religion, part of Person schema
8. Type (fb:type.object.type): part of Object schema, links to type Type
9. Description (fb:common.topic.description): part of Topic schema, links to type Text
10. Also known as (fb:common.topic.alias): part of Topic schema, links to type Text

No other items found

[Assistant]
The most relevant property is "Spouse (or domestic partner)" with the property ID fb:people.person.spouse_s. This should link Esther to her husband.

Now, I will construct a SPARQL query to find the spouse(s) of Esther (fb:m.02pn7), returning the spouse's IRI and optionally their label.

[Tool]
Got 117 rows and 2 columns, showing the first 5 and last 5 rows below:
| spouse                 | spouseLabel    |
| ---------------------- | -------------- |
| Esther (fb:m.02pn7)    | Ester (ca)     |
| Esther (fb:m.02pn7)    | Ester (es)     |
| Esther (fb:m.02pn7)    | Ester (et)     |
| Esther (fb:m.02pn7)    | Ester (fi)     |
| Esther (fb:m.02pn7)    | Ester (fil)    |
| ...                    | ...            |
| Ahasuerus (fb:m.0hy00) | Агасфер (uk)   |
| Ahasuerus (fb:m.0hy00) | אחשוורוש (iw)  |
| Ahasuerus (fb:m.0hy00) | اخشورش (fa)    |
| Ahasuerus (fb:m.0hy00) | 亚哈随鲁 (zh)      |
| Ahasuerus (fb:m.0hy00) | 亞哈隨魯 (zh-Hant) |

[Assistant]
The query results show that Esther's husband is Ahasuerus (fb:m.0hy00), which matches the traditional identification of her husband in the biblical narrative.

Here is the final SPARQL query and answer:

- Esther's husband is Ahasuerus (fb:m.0hy00).

SPARQL query:
SELECT ?spouse WHERE {
  fb:m.02pn7 fb:people.person.spouse_s ?marriage .
  ?marriage fb:people.marriage.spouse ?spouse .
}

Optionally, you can retrieve labels as well.

[Tool] Stopped generation process

[User]
Feedback (status=refine):
The SPARQL query retrieves all spouses of Esther (fb:m.02pn7), but the result includes Esther herself and both Ahasuerus (fb:m.0hy00) and Xerxes I (fb:m.0cjm1). Since Ahasuerus and Xerxes I are often considered the same historical figure, but the query returns both, the answer should clarify this ambiguity. Additionally, the query should filter out Esther herself from the spouse results, as a person cannot be their own spouse. Please refine the query to exclude Esther from the spouse results and, if possible, clarify the relationship between Ahasuerus and Xerxes I in the answer.

[Assistant]
Thank you for the feedback. Here’s my step-by-step plan to refine the answer:

1. Exclude Esther herself from the spouse results by adding a FILTER clause to the SPARQL query.
2. Clarify the relationship between Ahasuerus (fb:m.0hy00) and Xerxes I (fb:m.0cjm1). To do this, I will check if there are any properties (such as "same as", "also known as", or "alias") linking Ahasuerus and Xerxes I in Freebase.
3. Present the refined query and clarify in the answer that both Ahasuerus and Xerxes I are returned as spouses, and that they are often considered the same historical figure.

First, I will check for properties that might link Ahasuerus (fb:m.0hy00) and Xerxes I (fb:m.0cjm1).

[Tool]
Got 237 rows and 3 columns, showing the first 10 rows below:
| subject                | property                                                            | object                                                                   |
| ---------------------- | ------------------------------------------------------------------- | ------------------------------------------------------------------------ |
| Ahasuerus (fb:m.0hy00) | Type (fb:type.object.type)                                          | Topic (fb:common.topic)                                                  |
| Ahasuerus (fb:m.0hy00) | Key (fb:type.object.key)                                            | /en/ahasuerus                                                            |
| Ahasuerus (fb:m.0hy00) | Name (fb:type.object.name)                                          | Aasvero (pt)                                                             |
| Ahasuerus (fb:m.0hy00) | Topic equivalent webpage (fb:common.topic.topic_equivalent_webpage) | <http://ca.wikipedia.org/wiki/Assuer>                                    |
| Ahasuerus (fb:m.0hy00) | Notable for (fb:common.topic.notable_for)                           | fb:g.1258gp313                                                           |
| Ahasuerus (fb:m.0hy00) | Notable types (fb:common.topic.notable_types)                       | Art Subject (fb:m.02_8dn8)                                               |
| Ahasuerus (fb:m.0hy00) | Description (fb:common.topic.description)                           | Achaszwerosz — hebrajska forma i...w Muzeum Narodowego w Warszawie. (pl) |
| Ahasuerus (fb:m.0hy00) | Article (fb:common.topic.article)                                   | fb:m.0hy07                                                               |
| Ahasuerus (fb:m.0hy00) | Also known as (fb:common.topic.alias)                               | Asuero (es)                                                              |
| Ahasuerus (fb:m.0hy00) | Gender (fb:people.person.gender)                                    | Male (fb:m.05zppz)                                                       |
| ...                    | ...                                                                 | ...                                                                      |

[Tool]
Got 862 rows and 3 columns, showing the first 10 rows below:
| subject               | property                                                            | object                                                                   |
| --------------------- | ------------------------------------------------------------------- | ------------------------------------------------------------------------ |
| Xerxes I (fb:m.0cjm1) | Type (fb:type.object.type)                                          | Topic (fb:common.topic)                                                  |
| Xerxes I (fb:m.0cjm1) | Key (fb:type.object.key)                                            | /en/xerxes_i_of_persia                                                   |
| Xerxes I (fb:m.0cjm1) | Name (fb:type.object.name)                                          | Ahasyweros I dari Persia (id)                                            |
| Xerxes I (fb:m.0cjm1) | Topic equivalent webpage (fb:common.topic.topic_equivalent_webpage) | <http://ar.wikipedia.org/wiki/%2E%34%27%CC%27%31%34%27_%27%44%23%48%44>  |
| Xerxes I (fb:m.0cjm1) | Notable for (fb:common.topic.notable_for)                           | fb:g.1255nsymy                                                           |
| Xerxes I (fb:m.0cjm1) | Notable types (fb:common.topic.notable_types)                       | Monarch (fb:m.04fnrhx)                                                   |
| Xerxes I (fb:m.0cjm1) | Description (fb:common.topic.description)                           | Ahasyweros I dari Persia, juga d... menekan pemberontakan di Mesir. (id) |
| Xerxes I (fb:m.0cjm1) | Article (fb:common.topic.article)                                   | fb:m.0cjmc                                                               |
| Xerxes I (fb:m.0cjm1) | Also known as (fb:common.topic.alias)                               | Xerxes the Great (en)                                                    |
| Xerxes I (fb:m.0cjm1) | Has value (fb:freebase.valuenotation.has_value)                     | Height (fb:m.025d7wc)                                                    |
| ...                   | ...                                                                 | ...                                                                      |

[Tool]
Got 1 row and 3 columns:
| subject                | property                              | object      |
| ---------------------- | ------------------------------------- | ----------- |
| Ahasuerus (fb:m.0hy00) | Also known as (fb:common.topic.alias) | Asuero (es) |

[Tool]
Got 1 row and 3 columns:
| subject               | property                              | object                |
| --------------------- | ------------------------------------- | --------------------- |
| Xerxes I (fb:m.0cjm1) | Also known as (fb:common.topic.alias) | Xerxes the Great (en) |

[Tool]
Got 68 rows and 3 columns, showing the first 10 rows below:
| subject                | property                 | object                        |
| ---------------------- | ------------------------ | ----------------------------- |
| Ahasuerus (fb:m.0hy00) | Key (fb:type.object.key) | /en/ahasuerus                 |
| Ahasuerus (fb:m.0hy00) | Key (fb:type.object.key) | /user/avh/ellerdale/0080-bbf2 |
| Ahasuerus (fb:m.0hy00) | Key (fb:type.object.key) | /wikipedia/ca/Assuer          |
| Ahasuerus (fb:m.0hy00) | Key (fb:type.object.key) | /wikipedia/ca/Assuerus        |
| Ahasuerus (fb:m.0hy00) | Key (fb:type.object.key) | /wikipedia/ca/Asuero          |
| Ahasuerus (fb:m.0hy00) | Key (fb:type.object.key) | /wikipedia/ca_id/187900       |
| Ahasuerus (fb:m.0hy00) | Key (fb:type.object.key) | /wikipedia/ca/Rei_Assuer      |
| Ahasuerus (fb:m.0hy00) | Key (fb:type.object.key) | /wikipedia/ca_title/Assuer    |
| Ahasuerus (fb:m.0hy00) | Key (fb:type.object.key) | /wikipedia/de/Achaschwerosch  |
| Ahasuerus (fb:m.0hy00) | Key (fb:type.object.key) | /wikipedia/de/Ahasuerus       |
| ...                    | ...                      | ...                           |

[Tool]
Got 290 rows and 3 columns, showing the first 10 rows below:
| subject               | property                 | object                                                              |
| --------------------- | ------------------------ | ------------------------------------------------------------------- |
| Xerxes I (fb:m.0cjm1) | Key (fb:type.object.key) | /en/xerxes_i_of_persia                                              |
| Xerxes I (fb:m.0cjm1) | Key (fb:type.object.key) | /user/avh/ellerdale/0080-1757                                       |
| Xerxes I (fb:m.0cjm1) | Key (fb:type.object.key) | /wikipedia/ar/$0623$062D$0634$0648$064A$0631$0634                   |
| Xerxes I (fb:m.0cjm1) | Key (fb:type.object.key) | /wikipedia/ar/$0623$062D$0634$06...1$0634_$0627$0644$0623$0648$0644 |
| Xerxes I (fb:m.0cjm1) | Key (fb:type.object.key) | /wikipedia/ar/$062E$0631$062E$0633                                  |
| Xerxes I (fb:m.0cjm1) | Key (fb:type.object.key) | /wikipedia/ar/$062E$0631$062E$0633_$0627$0644$0623$0648$0644        |
| Xerxes I (fb:m.0cjm1) | Key (fb:type.object.key) | /wikipedia/ar/$062E$0634$0627$064A$0627$0631$0634$0627$0647         |
| Xerxes I (fb:m.0cjm1) | Key (fb:type.object.key) | /wikipedia/ar/$062E$0634$0627$06...4$0627_$0627$0644$0623$0648$0644 |
| Xerxes I (fb:m.0cjm1) | Key (fb:type.object.key) | /wikipedia/ar/$0632$0631$0643$0633$064A$0632                        |
| Xerxes I (fb:m.0cjm1) | Key (fb:type.object.key) | /wikipedia/ar/$0632$0631$0643$06...A$0632_$0627$0644$0623$0648$0644 |
| ...                   | ...                      | ...                                                                 |

[Tool]
Top 10 property alternatives:
1. same as (fb:base.numismatics.coin_reference.same_as): part of coin reference schema, links to type coin reference
2. Same as (fb:user.fbelleau.default_domain.kegg_gene.same_as): part of Kegg/Gene schema, links to type NCBI/Gene
3. Same as (fb:user.fbelleau.default_domain.bio2rdf_gene.same_as): part of Bio2RDF/Gene schema, links to type Bio2RDF
4. Same as (fb:user.fbelleau.default_domain.bio2rdf.same_as): part of Bio2RDF schema, links to type Bio2RDF
5. Equivalent (fb:medicine.drug_therapeutic_equivalence_relationship.equivalent): part of Drug therapeutic equivalence relationship schema, links to type Manufactured drug form
6. Similar to (fb:base.mystery.cryptid_classification.similar_to): links to type similar cryptid classification, part of Cryptid classification schema
7. Same day (fb:base.schemastaging.holiday_occurrence.same_day): part of Holiday occurrence schema, links to type Boolean
8. Corresponds to (fb:base.schemastaging.entity_hint.corresponds_to): links to type Corresponding entity relationship, part of Entity hint schema
9. Exact Match (fb:base.skosbase.skos_concept.exact_match): links to type SKOS Exact Match Relation, part of SKOS Concept schema
10. Equivalent topic (fb:media_common.media_genre.equivalent_topic): links to type Media genre equivalent topic, part of Media genre schema

[Tool] Got no rows and 3 columns

[Tool] Got no rows and 3 columns

[Assistant]
There is no explicit "same as" or equivalent property directly linking Ahasuerus (fb:m.0hy00) and Xerxes I (fb:m.0cjm1) in Freebase. However, both entities have aliases and Wikipedia links that suggest they are often identified as the same historical figure.

Now, I will refine the SPARQL query to:
- Exclude Esther herself from the spouse results.
- Return both Ahasuerus and Xerxes I as spouses.
- Optionally include labels for clarity.

Here is the refined query.

[Tool]
Got 59 rows and 2 columns, showing the first 5 and last 5 rows below:
| spouse                 | spouseLabel                     |
| ---------------------- | ------------------------------- |
| Xerxes I (fb:m.0cjm1)  | Ahasyweros I dari Persia (id)   |
| Xerxes I (fb:m.0cjm1)  | I. Khsajársá perzsa király (hu) |
| Xerxes I (fb:m.0cjm1)  | I. Serhas (tr)                  |
| Xerxes I (fb:m.0cjm1)  | Jerjes I (es)                   |
| Xerxes I (fb:m.0cjm1)  | Kserksas I (lt)                 |
| ...                    | ...                             |
| Ahasuerus (fb:m.0hy00) | Агасфер (uk)                    |
| Ahasuerus (fb:m.0hy00) | אחשוורוש (iw)                   |
| Ahasuerus (fb:m.0hy00) | اخشورش (fa)                     |
| Ahasuerus (fb:m.0hy00) | 亚哈随鲁 (zh)                       |
| Ahasuerus (fb:m.0hy00) | 亞哈隨魯 (zh-Hant)                  |

[Tool] Stopped generation process

[User]
Feedback (status=done):
The SPARQL query correctly retrieves the IRIs of Esther's spouses from Freebase, returning both Ahasuerus and Xerxes I, which matches the historical ambiguity. The answer is accurate, and the query follows all the required rules, including returning identifiers and not using unsupported features. No further refinement is needed.


PREFIX fb: <http://rdf.freebase.com/ns/>
SELECT ?school WHERE {
  fb:m.02z3d24 fb:people.person.education ?edu .
  ?edu fb:education.education.institution ?school .
}

Spencer Pratt went to the University of Southern California.

[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:
freebase at http://galera:7002

You can use the following SPARQL prefixes implicitly in all functions:
fb: <http://rdf.freebase.com/ns/
fbkey: <http://rdf.freebase.com/key/
rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: <http://www.w3.org/2000/01/rdf-schema#
owl: <http://www.w3.org/2002/07/owl#
xsd: <http://www.w3.org/2001/XMLSchema#
foaf: <http://xmlns.com/foaf/0.1/
skos: <http://www.w3.org/2004/02/skos/core#
dct: <http://purl.org/dc/terms/
dc: <http://purl.org/dc/elements/1.1/
prov: <http://www.w3.org/ns/prov#
schema: <http://schema.org/
geo: <http://www.opengis.net/ont/geosparql#
geosparql: <http://www.opengis.net/ont/geosparql#
gn: <http://www.geonames.org/ontology#
bd: <http://www.bigdata.com/rdf#
hint: <http://www.bigdata.com/queryHints#
wikibase: <http://wikiba.se/ontology#
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 did spencer pratt go to school?

[Assistant]
Let's break down the question:

1. The entity is "Spencer Pratt".
2. The property is "school attended" or "education".

First, I will search for the entity "Spencer Pratt" in Freebase to get the correct identifier.

[Tool]
Top 10 entity alternatives:
1. Spencer Pratt, also known as Spencer William Pratt (fb:m.02z3d24): Spencer William Pratt is an American television personality. In ...Apostol discuss current events, reality TV, and their own lives., has type Celebrity
2. Spencer Pratt (fb:m.0br79xp): has type Author
3. Spencer Charles Pratt (fb:m.0qgyd70): Spencer Charles Pratt was a lawyer., has type Deceased Person
4. Spencer Pratt 2009 (fb:m.05td0_c)
5. Amanda Beard/Heidi & Spencer Pratt, also known as Amanda Beard/Heidi & Spencer Pratt (fb:m.011cwr20): Olympian Amanda Beard switches places with reality-TV star Heidi Pratt., has type TV Episode
6. Keanu Reeves, Heidi & Spencer Pratt (fb:m.0dkkynt): has type TV Episode
7. Heidi and Spencer Pratt must stop (fb:m.08vp1r3)
8. Carrie Underwood, Heidi Montag & Spencer Pratt, also known as Carrie Underwood, Heidi Montag & Spencer Pratt (fb:m.07yr7vk): has type TV Episode
9. Whoopi Goldberg , Spencer Pratt, Nick Griffin (fb:m.06y74n5): has type TV Episode
10. Heidi Montag and Spencer Pratt get hitched (fb:m.09wrvdm)

[Assistant]
The most relevant entity for "Spencer Pratt" the television personality is fb:m.02z3d24.

Next, I will search for properties related to "school attended" or "education" for this entity.

[Tool]
Top 10 property alternatives:
1. Education (fb:people.person.education): links to type Education, part of Person schema
2. Article (fb:common.topic.article): links to type Document, part of Topic schema
3. Official website (fb:common.topic.official_website): part of Topic schema, links to type URI
4. Religion (fb:people.person.religion): links to type Religion, part of Person schema
5. Profession (fb:people.person.profession): links to type Profession, part of Person schema
6. Description (fb:common.topic.description): part of Topic schema, links to type Text
7. Web Link(s) (fb:common.topic.webpage): links to type Webpage, part of Topic schema
8. Gender (fb:people.person.gender): part of Person schema, links to type Gender
9. Type (fb:type.object.type): part of Object schema, links to type Type
10. Key (fb:type.object.key): part of Object schema, links to type Key

No other items found

[Assistant]
The relevant property is fb:people.person.education, which links to an Education object. I need to find the school associated with this education entry.

I will list triples where Spencer Pratt (fb:m.02z3d24) is the subject and the property is fb:people.person.education to see the structure of the education object.

[Tool]
Got 1 row and 3 columns:
| subject                      | property                               | object       |
| ---------------------------- | -------------------------------------- | ------------ |
| Spencer Pratt (fb:m.02z3d24) | Education (fb:people.person.education) | fb:m.0n1cn_d |

[Assistant]
Spencer Pratt's education is linked to the object fb:m.0n1cn_d, which is an Education object. Now, I need to find the school associated with this Education object.

I'll search for properties of fb:m.0n1cn_d related to "school".

[Tool]
Top 10 property alternatives:
1. Student (fb:education.education.student): part of Education schema, links to type Person
2. Institution (fb:education.education.institution): links to type Educational Institution, part of Education schema
3. Type (fb:type.object.type): part of Object schema, links to type Type

No other items found

[Assistant]
The relevant property is fb:education.education.institution, which links the Education object to the educational institution (school).

Now, I will list triples where the subject is fb:m.0n1cn_d and the property is fb:education.education.institution to find out which school Spencer Pratt attended.

[Tool]
Got 1 row and 3 columns:
| subject      | property                                         | object                                           |
| ------------ | ------------------------------------------------ | ------------------------------------------------ |
| fb:m.0n1cn_d | Institution (fb:education.education.institution) | University of Southern California (fb:m.065y4w7) |

[Tool]
Got 3,815 rows and 3 columns, showing the first 10 rows below:
| subject                                          | property                                                            | object                                                                                |
| ------------------------------------------------ | ------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------ |
| University of Southern California (fb:m.065y4w7) | Type (fb:type.object.type)                                          | Topic (fb:common.topic)                                                                                |
| University of Southern California (fb:m.065y4w7) | Key (fb:type.object.key)                                            | /authority/google/google_plus_page/106536967041295420187                                               |
| University of Southern California (fb:m.065y4w7) | Name (fb:type.object.name)                                          | Đại học Nam California (vi)                                                                            |
| University of Southern California (fb:m.065y4w7) | Topic equivalent webpage (fb:common.topic.topic_equivalent_webpage) | <http://ar.wikipedia.org/wiki/%2C%27%45%39%29_%43%27%44%4A%41%48%31%46%4A%27_%27%44%2C%46%48%28%4A%29> |
| University of Southern California (fb:m.065y4w7) | Notable for (fb:common.topic.notable_for)                           | fb:g.125b1shfk                                                                                |
| University of Southern California (fb:m.065y4w7) | Notable types (fb:common.topic.notable_types)                       | College/University (fb:m.01y2hnl)                                                                      |
| University of Southern California (fb:m.065y4w7) | Description (fb:common.topic.description)                           | De University of Southern Califo... tussen USC en stadsgenoot UCLA. (nl)                               |
| University of Southern California (fb:m.065y4w7) | Article (fb:common.topic.article)                                   | fb:m.07vwy                                                                                |
| University of Southern California (fb:m.065y4w7) | Also known as (fb:common.topic.alias)                               | SC (en)                                                                                |
| University of Southern California (fb:m.065y4w7) | Has value (fb:freebase.valuenotation.has_value)                     | Place founded (fb:m.01xxxv2)                                                                           |
| ...                                              | ...                                                                 | ...                                                                                |

[Tool]
Got 1 row and 1 column:
| school                                           |
| ------------------------------------------------ |
| University of Southern California (fb:m.065y4w7) |

[Tool] Stopped generation process

[User]
Feedback (status=done):
The SPARQL query correctly retrieves the educational institution attended by Spencer Pratt using the appropriate entity and properties from Freebase. The result matches the expected answer, and the query returns the IRI of the institution as required. No further refinement is necessary.