PREFIX wikibase: <http://wikiba.se/ontology#>
PREFIX p: <http://www.wikidata.org/prop/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX psv: <http://www.wikidata.org/prop/statement/value/>
PREFIX pq: <http://www.wikidata.org/prop/qualifier/>
SELECT ?item ?itemLabel ?popAmount ?popDate ?areaKm WHERE {
  VALUES ?item {
    wd:Q884 wd:Q31057 wd:Q35555 wd:Q220982 wd:Q31063 wd:Q475038
  }
  {
    SELECT ?item ( MAX( ?pd ) AS ?latestDate ) WHERE {
      ?item p:P1082 ?s .
      ?s pq:P585 ?pd
    }
    GROUP BY ?item
  }
  OPTIONAL {
    ?item rdfs:label ?itemLabel FILTER ( LANG( ?itemLabel ) = "en" )
  }
  OPTIONAL {
    ?item p:P1082 ?prefPopStmt .
    ?prefPopStmt pq:P585 ?latestDate .
    ?prefPopStmt wikibase:rank wikibase:PreferredRank .
    ?prefPopStmt psv:P1082 ?prefPopVal .
    ?prefPopVal wikibase:quantityAmount ?popAmountPref .
  }
  OPTIONAL {
    FILTER NOT EXISTS {
      ?item p:P1082 ?prefPopStmt2 .
      ?prefPopStmt2 pq:P585 ?latestDate .
      ?prefPopStmt2 wikibase:rank wikibase:PreferredRank .
    }
    ?item p:P1082 ?anyPopStmt .
    ?anyPopStmt pq:P585 ?latestDate .
    ?anyPopStmt psv:P1082 ?anyPopVal .
    ?anyPopVal wikibase:quantityAmount ?popAmountAny .
  }
  BIND( COALESCE ( ?popAmountPref , ?popAmountAny ) AS ?popAmount ) BIND( ?latestDate AS ?popDate ) OPTIONAL {
    ?item p:P2046 ?prefAreaStmt .
    ?prefAreaStmt wikibase:rank wikibase:PreferredRank .
    ?prefAreaStmt psv:P2046 ?prefAreaVal .
    ?prefAreaVal wikibase:quantityNormalized ?prefAreaNorm .
    ?prefAreaNorm wikibase:quantityAmount ?prefAreaAmount .
    OPTIONAL {
      ?prefAreaStmt pq:P642 ?ap1
    }
    OPTIONAL {
      ?prefAreaStmt pq:P518 ?ap2
    }
    OPTIONAL {
      ?prefAreaStmt pq:P1001 ?ap3
    }
    OPTIONAL {
      ?prefAreaStmt pq:P3005 ?ap4
    }
    FILTER ( ( ! bound( ?ap1 ) || ?ap1 NOT IN ( wd:Q187223 , wd:Q9259 , wd:Q64364418 , wd:Q389717 , wd:Q80389 , wd:Q11401819 ) ) && ( ! bound( ?ap2 ) || ?ap2 NOT IN ( wd:Q187223 , wd:Q9259 , wd:Q64364418 , wd:Q389717 , wd:Q80389 , wd:Q11401819 ) ) && ( ! bound( ?ap3 ) || ?ap3 NOT IN ( wd:Q187223 , wd:Q9259 , wd:Q64364418 , wd:Q389717 , wd:Q80389 , wd:Q11401819 ) ) && ( ! bound( ?ap4 ) || ?ap4 NOT IN ( wd:Q187223 , wd:Q9259 , wd:Q64364418 , wd:Q389717 , wd:Q80389 , wd:Q11401819 ) ) )
  }
  OPTIONAL {
    FILTER NOT EXISTS {
      ?item p:P2046 ?prefAreaStmt2 .
      ?prefAreaStmt2 wikibase:rank wikibase:PreferredRank .
      ?prefAreaStmt2 psv:P2046 ?prefAreaVal2 .
      ?prefAreaVal2 wikibase:quantityNormalized ?prefAreaNorm2 .
      OPTIONAL {
        ?prefAreaStmt2 pq:P642 ?ap12
      }
      OPTIONAL {
        ?prefAreaStmt2 pq:P518 ?ap22
      }
      OPTIONAL {
        ?prefAreaStmt2 pq:P1001 ?ap32
      }
      OPTIONAL {
        ?prefAreaStmt2 pq:P3005 ?ap42
      }
      FILTER ( ( ! bound( ?ap12 ) || ?ap12 NOT IN ( wd:Q187223 , wd:Q9259 , wd:Q64364418 , wd:Q389717 , wd:Q80389 , wd:Q11401819 ) ) && ( ! bound( ?ap22 ) || ?ap22 NOT IN ( wd:Q187223 , wd:Q9259 , wd:Q64364418 , wd:Q389717 , wd:Q80389 , wd:Q11401819 ) ) && ( ! bound( ?ap32 ) || ?ap32 NOT IN ( wd:Q187223 , wd:Q9259 , wd:Q64364418 , wd:Q389717 , wd:Q80389 , wd:Q11401819 ) ) && ( ! bound( ?ap42 ) || ?ap42 NOT IN ( wd:Q187223 , wd:Q9259 , wd:Q64364418 , wd:Q389717 , wd:Q80389 , wd:Q11401819 ) ) )
    }
    ?item p:P2046 ?anyAreaStmt .
    ?anyAreaStmt psv:P2046 ?anyAreaVal .
    ?anyAreaVal wikibase:quantityNormalized ?anyAreaNorm .
    ?anyAreaNorm wikibase:quantityAmount ?anyAreaAmount .
    OPTIONAL {
      ?anyAreaStmt pq:P642 ?ap11
    }
    OPTIONAL {
      ?anyAreaStmt pq:P518 ?ap22
    }
    OPTIONAL {
      ?anyAreaStmt pq:P1001 ?ap33
    }
    OPTIONAL {
      ?anyAreaStmt pq:P3005 ?ap44
    }
    FILTER ( ( ! bound( ?ap11 ) || ?ap11 NOT IN ( wd:Q187223 , wd:Q9259 , wd:Q64364418 , wd:Q389717 , wd:Q80389 , wd:Q11401819 ) ) && ( ! bound( ?ap22 ) || ?ap22 NOT IN ( wd:Q187223 , wd:Q9259 , wd:Q64364418 , wd:Q389717 , wd:Q80389 , wd:Q11401819 ) ) && ( ! bound( ?ap33 ) || ?ap33 NOT IN ( wd:Q187223 , wd:Q9259 , wd:Q64364418 , wd:Q389717 , wd:Q80389 , wd:Q11401819 ) ) && ( ! bound( ?ap44 ) || ?ap44 NOT IN ( wd:Q187223 , wd:Q9259 , wd:Q64364418 , wd:Q389717 , wd:Q80389 , wd:Q11401819 ) ) )
  }
  BIND( COALESCE ( ?prefAreaAmount , ?anyAreaAmount ) AS ?areaNormAmount ) BIND( IF( BOUND( ?areaNormAmount ) , ( ?areaNormAmount / 1000000 ) , ?areaNormAmount ) AS ?areaKm )
}
ORDER BY ?itemLabel

Using entities:
South Kuril Islands (wd:Q11401819), also known as Etorofu, Habomai, Kunashiri and Shikotan Islands, Hoppo Region, Minami chishima, Southern Kuriles, South Kurils
lagoon (wd:Q187223), also known as albufera, haff, liman
Tristan da Cunha (wd:Q220982), also known as 🇹🇦, TA, Tristan, Tristan d'Acunha
Norfolk Island (wd:Q31057), also known as Norfolk Island, Australia, Norfolk Island, Other Territories, Norfolk Island, Other Territories, Australia, Territory of Norfolk Island
Christmas Island (wd:Q31063), also known as Christmas Island, Other Territories, Christmas Island, Other Territories, Australia, cx, Territory of Christmas Island
Wallis and Futuna (wd:Q35555), also known as Wallis and Futuna Islands, Wallis & Futuna
Kuril Islands dispute (wd:Q389717), also known as Defence of the Kuril Islands, Northern Territories dispute
Galápagos Province (wd:Q475038), also known as Galapagos Province
UNESCO World Heritage Site buffer zone (wd:Q64364418)
Kuril Islands (wd:Q80389), also known as Chishima Islands, Kurile Islands
South Korea (wd:Q884), also known as 🇰🇷, Choson, Daehanminguk, Daehan Minguk, Hanguk, etc.
World Heritage Site (wd:Q9259), also known as Patrimonio de la Humanidad, United Nations Educational, Scientific and Cultural Organization (UNESCO) World Heritage Site, WHS, World Heritage List Site, World heritage site

Using properties:
applies to jurisdiction (wd:P1001 as pq), also known as applicable area, applicable country, applicable geographic place, applicable jurisdiction, applicable location, etc.
population (wd:P1082 as psv/p), also known as human population, inhabitants, P1082
area (wd:P2046 as psv/p), also known as acreage, camera resolution, die area, die size, image resolution, etc.
valid in place (wd:P3005 as pq), also known as applies to country, applies to location, applies to place, country, true in, etc.
applies to part (wd:P518 as pq), also known as applied to, applies to aspect, applies to form, applies to phase, apply to, etc.
point in time (wd:P585 as pq), also known as as of, at time, by date, date, during, etc.
of (wd:P642 as pq), also known as applies to, for, in, in scope of, in the scope of, etc.

Answer:
Results (one row per entity):

- wd:Q31063 (Christmas Island) — population: 1692 ; population date: 2021-08-10 ; area (km²): 135
- wd:Q475038 (Galápagos Province) — population: 28583 ; population date: 2022-01-01 ; area (km²): 8233.11
- wd:Q31057 (Norfolk Island) — population: 2188 ; population date: 2021-08-10 ; area (km²): 34.6
- wd:Q884 (South Korea) — population: 51628117 ; population date: 2022-01-01 ; area (km²): 100295
- wd:Q220982 (Tristan da Cunha) — population: 246 ; population date: 2019-01-01 ; area (km²): 207
- wd:Q35555 (Wallis and Futuna) — population: 11558 ; population date: 2018-01-01 ; area (km²): 274

Notes on approach and filtering:
- I matched each name to the corresponding Wikidata entity (QIDs shown above) and retrieved population (P1082) and area (P2046) values.
- For population I selected the statement(s) with the latest point-in-time qualifier (P585) for each entity; if multiple statements existed for that same date I preferred the statement with Preferred rank when present.
- For area I preferred Preferred-rank area statements that do not have qualifiers indicating they "apply to" lagoons (wd:Q187223), World Heritage Sites (wd:Q9259), UNESCO World Heritage buffer zones (wd:Q64364418), or the Kuril Islands dispute / Kuril Islands (wd:Q389717, wd:Q80389, wd:Q11401819). If no preferred allowed area was present I used any allowed area.
- Area values were normalized and converted to km² where necessary (the query divides normalized area by 1,000,000 to convert m² to km²).

If you want the results in a different format (CSV/TSV/JSON) or want me to include qualifiers/sources for each statement, I can provide that.

What are the distinct entities among South Korea, Norfolk Island, Wallis and Futuna, Tristan da Cunha, Christmas Island, and Galápagos Province, along with their population, area in square kilometers, and the date of the population data? Please only consider the latest available population date, and exclude areas that apply to lagoons, World Heritage Sites, UNESCO World Heritage Site buffer zones, and the Kuril Islands dispute, if this information is available.

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

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. Search for the 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. Execute intermediate queries to get feedback and to verify your assumptions. You may need to refine or rethink your current plan based on the query results and go back to step 2 if needed, possibly multiple times.
4. Use the answer or cancel function to finalize your answer and stop the generation process.

You have access to the following knowledge graphs:
wikidata at http://localhost:7001 without notes

You are provided with the following notes across all knowledge graphs:
No notes available

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/
qlss: <https://qlever.cs.uni-freiburg.de/spatialSearch/
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 these rules:
- Explain your thought process before and after each step and function call.
- Do not just use or make up entity or property identifiers without verifying their existence in the knowledge graphs first.
- 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.
- Always execute your final SPARQL query before giving an answer to make sure it returns the expected results.
- 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.
- 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.
- 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.
- For questions with a "True" or "False" answer the SPARQL query should be an ASK query.

[User] What are the distinct entities among South Korea, Norfolk Island, Wallis and Futuna, Tristan da Cunha, Christmas Island, and Galápagos Province, along with their population, area in square kilometers, and the date of the population data? Please only consider the latest available population date, and exclude areas that apply to lagoons, World Heritage Sites, UNESCO World Heritage Site buffer zones, and the Kuril Islands dispute, if this information is available.

[Assistant] I'll search Wikidata for each of the named places to find their entity identifiers. I'll start with "South Korea".

[Tool]
Top 10 entity alternatives:
1. South Korea (wd:Q884), also known as 🇰🇷, Choson, Daehanminguk, Daehan Minguk, Hanguk, etc.: is instance of constitutional republic / is instance of government department / is instance of government agency / is instance of sovereign state / is instance of country / republic in East Asia / republic in East Asia / country in East Asia
2. South Korea (wd:Q39457546): scientific article published on 24 August 2016 / scientific article published on 24 August 2016 / scientific article published on 24 August 2016 / is instance of scholarly article / is instance of academic article
3. Korea & world affairs (wd:Q27718719, matched via Korea (South)), also known as Korea (South): is instance of scientific journal / journal
4. South Korea (wd:Q58089875): 1966 scholarly article published in Adelphi Papers / is instance of scholarly article / is instance of academic article
5. South Korea (wd:Q57212880): 2015 scholarly article published in Nature vol 519, issue 7544 / is instance of scholarly article / is instance of academic article
6. South Korea (wd:Q64384833): is instance of scholarly article / is instance of academic article / scholarly article
7. South Korea. (wd:Q47320268): scientific article published in April 1991 / scientific article published in April 1991 / scientific article published in April 1991 / is instance of scholarly article / is instance of academic article
8. [South] Korea (wd:Q50700327): scientific article published in April 1987 / scientific article published in April 1987 / scientific article published in April 1987 / is instance of scholarly article / is instance of academic article
9. South Korea (wd:Q71873974): journal article; published in Nature on 2005-10-01 / journal article; published in Nature on 2005-10-01 / is instance of scholarly article / is instance of academic article
10. South Korea (wd:Q74206439): journal article; published in Nature on 2015-08-12 / journal article; published in Nature on 2015-08-12 / is instance of scholarly article / is instance of academic article

[Assistant] I'll search for Norfolk Island to find its Wikidata QID.

[Tool]
Top 10 entity alternatives:
1. Norfolk Island (wd:Q31057), also known as Norfolk Island, Australia, Norfolk Island, Other Territories, Norfolk Island, Other Territories, Australia, Territory of Norfolk Island: external territory of Australia in the South Pacific Ocean, consisting of the island of the same name plus neighbouring islands / is instance of external territory of Australia / is instance of territory of Australia
2. Santa Cruz Island (wd:Q713127, matched via Norfolk Island), also known as Chavez I., Chávez I., Chavez Is., Chávez Is., Chavez Island, etc.: island of the Galápagos Islands / is instance of island
3. Norfolk Island Airport (wd:Q2732089, matched via NORFOLK ISLAND), also known as NLK, NORFOLK ISLAND, Norfolk Island International Airport, YSNF: is instance of commercial traffic aerodrome / airport on Norfolk Island, Australia / is instance of airport / airport in Australia / airport in Australia
4. Norfolk Island (wd:Q8437343): main island in the group of islands comprising the Australian ... the South Pacific Oceanic between Australia and New Zealand / is instance of island
5. Norfolk Island (wd:Q106581254): island of Ullswater, in Patterdale, Eden, Cumbria, England / is instance of island
6. Norfolk Island∗ (wd:Q58544332): is instance of scholarly article / is instance of academic article
7. Kingston (wd:Q30963, matched via Kingston, Norfolk Island), also known as Kingston, Norfolk Island: capital of Norfolk Island, Australia / is instance of city
8. Araucaria heterophylla (wd:Q161070, matched via Norfolk Island pine), also known as Araucaria excelsa, Norfolk Island pine, Norfolk pine, star pine: is instance of taxon / is subclass of tree / species of plant
9. flag of Norfolk Island (wd:Q235445, matched via Norfolk Island flag), also known as 🇳🇫, Norfolk Island flag: flag of the Australian territory of Norfolk Island / is instance of flag of a country subdivision / is instance of flag design
10. Norfuk (wd:Q33797, matched via Norfolk Island Creole), also known as Norf'k, Norfolk, Norfolk English, Norfolkese, Norfolk Island Creole: is subclass of Pitcairn-Norfolk / dialect of Pitcairn-Norfolk / is instance of dialect / is subclass of Pitkern

[Assistant] Next I'll search for Wallis and Futuna.

[Tool]
Top 10 entity alternatives:
1. Wallis and Futuna (wd:Q35555), also known as Wallis and Futuna Islands, Wallis & Futuna: is instance of overseas collectivity of France / overseas collectivity of France
2. flag of Wallis and Futuna (wd:Q317660, matched via Wallis and Futuna flag), also known as Wallis and Futuna flag: is instance of flag of a country subdivision / official flag of Wallis and Futuna
3. Vaitupu, Wallis and Futuna (wd:Q4007286): Village of Wallis and Futuna, France / is instance of human settlement / human settlement in France / human settlement in France
4. Vele, Wallis and Futuna (wd:Q7918875): Village in Wallis and Futuna, France / is instance of human settlement / human settlement in France / human settlement in France
5. Tamana, Wallis and Futuna (wd:Q3980555): is instance of human settlement / human settlement in France / human settlement in France / human settlement in France
6. Tavai, Wallis and Futuna (wd:Q7688993): is instance of human settlement / human settlement in France / human settlement in France / human settlement in France
7. Tepa, Wallis and Futuna (wd:Q16897382): is instance of human settlement / human settlement in France / human settlement in France / human settlement in France
8. Wallis and Futuna protectorate (wd:Q60848340): French protectorate in Oceania (1888-1961) / is instance of protectorate
9. geography of Wallis and Futuna (wd:Q9267051, matched via Wallis and Futuna geography), also known as Wallis and Futuna geography: is instance of geography of geographic location / Geographical features of French territory
10. Liku, Wallis and Futuna (wd:Q3832347): is instance of human settlement

[Assistant] Now Tristan da Cunha.

[Tool]
Top 10 entity alternatives:
1. Tristan da Cunha (wd:Q220982), also known as 🇹🇦, TA, Tristan, Tristan d'Acunha: is instance of first-level administrative division / is instance of administrative territorial entity / is instance of island group / South Atlantic island group
2. Tristan da Cunha (wd:Q2454241), also known as Tristan da Cunha Island, Tristan Island: main island of the Tristan da Cunha island group / is instance of Volcano / is instance of volcano / is instance of island
3. Tristan da Cunha (wd:Q58984165): scientific article published in Nature / is instance of scholarly article / is instance of academic article
4. Tristan da Cunha (wd:Q56852041): is instance of scholarly article / is instance of academic article
5. TRISTAN DA CUNHA (wd:Q84926195): scientific article published on August 27, 2010 / scientific article published on 27 August 2010 / is instance of scholarly article / is instance of academic article
6. Tristan da Cunha (wd:Q76320996): scientific article published on 01 February 2004 / is instance of scholarly article / is instance of academic article
7. Tristan da Cunha (wd:Q74822950): scientific article published on 01 January 1958 / is instance of scholarly article / is instance of academic article
8. flag of Tristan da Cunha (wd:Q818665, matched via Tristan da Cunha flag), also known as Tristan da Cunha flag: is instance of flag of a country subdivision / flag of the island group of Tristan da Cunha
9. Tristan hotspot (wd:Q7844153, matched via Tristan da Cunha hotspot), also known as Tristan da Cunha hotspot: volcanic hotspot in the Atlantic Ocean / is instance of hotspot
10. geography of Tristan da Cunha (wd:Q5535246, matched via Tristan da Cunha geography), also known as Tristan da Cunha geography: is subclass of geography of Saint Helena, Ascension and Tristan da Cunha / is instance of geography of geographic location

[Assistant] Next Christmas Island (there are two: Australian Christmas Island and Christmas Island in Kiribati — user likely means the Australian one in the list with others like Norfolk, Tristan, Galápagos, Wallis and Futuna). I'll search for Christmas Island.

[Tool]
Top 10 entity alternatives:
1. Christmas Island (wd:Q31063), also known as Christmas Island, Other Territories, Christmas Island, Other Territories, Australia, cx, Territory of Christmas Island: island and external territory of Australia, located in the Indian Ocean / is instance of administrative territorial entity / is instance of external territory of Australia / is instance of island
2. Kiritimati (wd:Q193331, matched via Christmas Island), also known as Christmas Island: coral atoll in the northern Line Islands, Kiribati / is instance of island / is instance of atoll / island in Kiribati / island in Kiribati
3. Christmas Island Airport (wd:Q1035011, matched via CHRISTMAS ISLAND), also known as CHRISTMAS ISLAND, Christmas Island International Airport, XCH, YPXM: is instance of commercial traffic aerodrome / airport on Christmas Island / is instance of airport / airport in Australia / airport in Australia
4. Christmas Island (wd:Q1383873): island in the Great Australian Bight, part of the New Year Islands, Tasmania / is instance of island
5. Christmas Island (wd:Q1386670), also known as Christmas Island, Nova Scotia: human settlement in Nova Scotia, Canada / is instance of General Service Area
6. Christmas Island (wd:Q113945903): 1988 studio album by Leon Redbone / is instance of album
7. Christmas Island (wd:Q27700297): is instance of island / island in Myanmar / island in Myanmar / island in Myanmar
8. Island Christmas (wd:Q26966338): album by Christine Anu / album by Christine Anu / album by Christine Anu / is instance of album
9. Christmas Island (wd:Q22498726): island in Rainy River District, Ontario, Canada / is instance of island / island in Canada / island in Canada
10. Christmas Island (wd:Q22498715): island in Muskoka District Municipality, Ontario, Canada (lat 45.17, lon -79.72) / is instance of island / island in Canada / island in Canada

[Assistant] Next Galápagos Province. I'll search for that.

[Tool]
Top 10 entity alternatives:
1. Galápagos Province (wd:Q475038), also known as Galapagos Province: is instance of integral overseas territory / is instance of Provinces of Ecuador / is instance of province of Ecuador / province of Ecuador
2. Galapagos marine province (wd:Q107540103): bio-geographic province in MEOW scheme / is instance of MEOW marine province
3. Jakarta (wd:Q3630, matched via Jakarta Province), also known as Djakarta, DKI Jakarta, Jakarta, Indonesia, Jakarta Province, Special Capital Region of Jakarta, etc.: city and smallest province of Indonesia / is instance of former national capital / is instance of province of Indonesia / is instance of largest city / is instance of global city / is instance of Metropolis / is instance of metropolis / is instance of megacity
4. Quebec (wd:Q176, matched via Quebec Province), also known as CA-QC, P.Q., PQ, Province of Quebec, QC, etc.: is instance of province of Canada / province of Canada / province of Canada
5. Xinjiang (wd:Q34800, matched via Xinjiang Province), also known as Chinese Northwest, Chinese Turkestan, CN-65, Hsin-chiang, Northwest, etc.: is instance of autonomous region / autonomous region in China
6. province (wd:Q34876), also known as provinces: administrative division in several countries or states / is instance of administrative territorial entity type / is subclass of administrative territorial entity / administrative division in several countries
7. New Brunswick (wd:Q1965, matched via Picture Province), also known as CA-NB, N.B., NB, Picture Province, Province of New Brunswick: is instance of province of Canada / province of Canada / province of Canada
8. Sichuan (wd:Q19770, matched via Sichuan Province), also known as Ba, Hua-hsi, Huahsi, Huaxi, Province of Sichuan, etc.: province of China, previously inclusive of the present Chongqing Municipality / is instance of province of China / is instance of province
9. Hainan (wd:Q42200, matched via Hainan province), also known as Hainan province: is instance of first-level administrative division / is instance of province of China / is instance of province / province of China
10. Yunnan (wd:Q43194, matched via Yunnan Province), also known as Province of Yunnan, Younnan, Yunan, Yun-nan, Yun Nan, etc.: is instance of province of China / is instance of province / province of China

[Assistant] I'll search for properties related to "applies to" to find how area statements might indicate they apply to lagoons, World Heritage Sites, buffer zones, or the Kuril Islands dispute.

[Tool]
Top 10 property alternatives:
1. of (wd:P642 as prn/p/pr/wdt/ps/pqv/psv/pq/psn/pqn/wdtn/prv, matched via applies to), also known as applies to, for, in, in scope of, in the scope of, etc.: (This property is being deprecated, see details at WD:P642) ... a statement applies within the scope of a particular item / (This property is being deprecated, see details at WD:P642) ... a statement applies within the scope of a particular item / (This property is being deprecated, see details at WD:P642) ... a statement applies within the scope of a particular item / (being deprecated, find alternatives at WD:P642) qualifier ... a statement applies within the scope of a particular item
2. applies to part (wd:P518 as prn/p/pr/wdt/ps/pqv/psv/pq/psn/pqn/wdtn/prv, matched via applied to), also known as applied to, applies to aspect, applies to form, applies to phase, apply to, etc.: part, aspect, or form of the item to which the claim applies / part of the item for which the claim is valid / part of the item for which the claim is valid
3. applies to jurisdiction (wd:P1001 as prn/p/pr/wdt/ps/pqv/psv/pq/psn/pqn/wdtn/prv, matched via applies to area), also known as applicable area, applicable country, applicable geographic place, applicable jurisdiction, applicable location, etc.: the item (institution, law, public office, public ... jurisdiction: a country, state, municipality, ...) / the item (an institution, law, public office ...) or ... jurisdiction: a country, state, municipality, ...) / is subproperty of characteristic of / is subproperty of significant place / is subproperty of operating area
4. valid in place (wd:P3005 as prn/p/pr/wdt/ps/pqv/psv/pq/psn/pqn/wdtn/prv, matched via applies to place), also known as applies to country, applies to location, applies to place, country, true in, etc.: is subproperty of applies to part / place where a statement is valid / place where a statement is valid
5. valid in period (wd:P1264 as prn/p/pr/wdt/ps/pqv/psv/pq/psn/pqn/wdtn/prv, matched via applies to period), also known as applies to era, applies to period, applies to season, applies to time, period of applicability, etc.: time period when a statement is valid / time period when a statement is valid
6. applies to people (wd:P6001 as prn/p/pr/wdt/ps/pqv/psv/pq/psn/pqn/wdtn/prv, matched via applies to person), also known as applies to person, of, of people, of person, subgroup, etc.: qualifier to a specific group of people, members of a group or organization
7. subject sense (wd:P6072 as prn/p/pr/wdt/ps/pqv/psv/pq/psn/pqn/wdtn/prv, matched via applies to sense), also known as applies to sense, demonstrates sense, sense demonstrated, P6072: (qualifier for lexemes) statement applies only to listed senses of statement's subject
8. pertainym of (wd:P8471 as prn/p/pr/wdt/ps/pqv/psv/pq/psn/pqn/wdtn/prv, matched via pertains to), also known as adjectival form of, adjective form of, adjective of, adjective related to adverb, adverbial form of, etc.: links an adjective to a noun (e.g. lunar → moon), or an ... → slow); the sense pertains/relates to the target sense
9. object of statement has role (wd:P3831 as prn/p/pr/wdt/ps/pqv/psv/pq/psn/pqn/wdtn/prv, matched via as), also known as as, circumstances of employment, has role, object had role, object has generic identity, etc.: (qualifier) role or generic identity of the predicate ... role of the item the statement is on ("subject"), use P2868
10. character role (wd:P453 as prn/p/pr/wdt/ps/pqv/psv/pq/psn/pqn/wdtn/prv, matched via as), also known as acting role, as, performer of, plays, role, etc.: specific role played or filled by subject -- use only as qualifier of "cast member" (P161), "voice actor" (P725) / specific role played or filled by subject (use only as qualifier of P161 or P725)

[Assistant] I'll look up the area (P2046) statements for Galápagos Province (wd:Q475038) to see whether there are qualifiers like "applies to" indicating lagoons, World Heritage Sites, buffer zones, or Kuril Islands dispute.

[Tool]
Got 2 rows and 3 columns:
| subject                         | property       | object                                         |
| ------------------------------- | -------------- | ---------------------------------------------- |
| Galápagos Province (wd:Q475038) | area (p:P2046) | s:Q475038-47CEF4BA-7B28-4081-ACE2-12F6B418B648 |
| Galápagos Province (wd:Q475038) | area (p:P2046) | s:Q475038-CC8ED2A6-827A-4EA9-891F-8A86505DC879 |

[Assistant] I'll get details of those specific area statements to see qualifiers.

[Tool]
Got 1 row and 3 columns:
| subject                                        | property         | object                             |
| ---------------------------------------------- | ---------------- | ---------------------------------- |
| s:Q475038-47CEF4BA-7B28-4081-ACE2-12F6B418B648 | area (psv:P2046) | v:c0e6c7896f0f7fdb3756665236395f21 |

[Tool]
Got 1 row and 3 columns:
| subject                                        | property         | object                             |
| ---------------------------------------------- | ---------------- | ---------------------------------- |
| s:Q475038-CC8ED2A6-827A-4EA9-891F-8A86505DC879 | area (psv:P2046) | v:7e41a3007cee8db30db9d9ebc599503a |

[Assistant] I'll expand those to show the value and qualifiers like "applies to".

[Tool]
Got 4 rows and 3 columns:
| subject                            | property                    | object                             |
| ---------------------------------- | --------------------------- | ---------------------------------- |
| v:c0e6c7896f0f7fdb3756665236395f21 | wikibase:quantityUnit       | square kilometre (wd:Q712226)      |
| v:c0e6c7896f0f7fdb3756665236395f21 | wikibase:quantityAmount     | 8010 (xsd:decimal)                 |
| v:c0e6c7896f0f7fdb3756665236395f21 | wikibase:quantityNormalized | v:51fa2204c89c48486b5bc949d5bc4e1b |
| v:c0e6c7896f0f7fdb3756665236395f21 | rdf:type                    | wikibase:QuantityValue             |

[Tool]
Got 4 rows and 3 columns:
| subject                            | property                    | object                             |
| ---------------------------------- | --------------------------- | ---------------------------------- |
| v:7e41a3007cee8db30db9d9ebc599503a | wikibase:quantityUnit       | square kilometre (wd:Q712226)      |
| v:7e41a3007cee8db30db9d9ebc599503a | wikibase:quantityAmount     | 8233.11 (xsd:decimal)              |
| v:7e41a3007cee8db30db9d9ebc599503a | wikibase:quantityNormalized | v:c910c1af5a797f46f3ac60ced5c9387f |
| v:7e41a3007cee8db30db9d9ebc599503a | rdf:type                    | wikibase:QuantityValue             |

[Assistant] I'll search for the Wikidata items for "lagoon", "World Heritage Site", "buffer zone", and "Kuril Islands dispute" to use in excluding area qualifiers.

[Tool]
Top 10 entity alternatives:
1. lagoon (wd:Q187223), also known as albufera, haff, liman: shallow body of water separated from larger body of water by a barrier / shallow body of water / shallow body of water / is subclass of lake / is subclass of bay
2. liman (wd:Q156030, matched via lagoon), also known as lagoon: landform, formed at the mouth of a river where flow is blocked by a bar of sediments / is subclass of body of water / is subclass of bay
3. Lagoon (wd:Q6472552): is instance of video game / 1990 video game / 1990 video game / 1990 video game
4. Lagoon Amusement Park (wd:Q3216196, matched via Lagoon), also known as Lagoon: amusement park in Farmington, Utah, United States / is instance of amusement park
5. lagoon (wd:Q61861051), also known as nose: is subclass of still waters
6. Lagoon (wd:Q21955158): is instance of lake / lake in Australia / lake in Australia / lake in Australia
7. Kimi no Matsu Sekai (wd:Q20726599, matched via Lagoon), also known as Lagoon: is instance of single / song by Lagoon
8. lagoon (wd:Q4990444): is subclass of bay
9. Lagoon (wd:Q48815704): 2014 africanfuturist novel by Nnedi Okorafor / is instance of literary work
10. Lagoon (wd:Q111210042), also known as Lagoon languages: is instance of languoid

[Tool]
Top 10 entity alternatives:
1. World Heritage Site (wd:Q9259), also known as Patrimonio de la Humanidad, United Nations Educational, Scientific and Cultural Organization (UNESCO) World Heritage Site, WHS, World Heritage List Site, World heritage site: place listed by the UNESCO as of special cultural or physical significance / is instance of conservation designation / place of significance listed by UNESCO / place of significance listed by UNESCO / is instance of heritage designation / is subclass of cultural heritage / is subclass of natural heritage / is subclass of Natural heritage
2. World Heritage Site (wd:Q107681760), also known as https://www.worldheritagesite.org/: unofficial website and database of UNESCO World Heritage Sites / is instance of database / is instance of website
3. Cusco (wd:Q5582862, matched via Cusco World Heritage Site), also known as Capital of the Inca empire, City of Cusco, City of Cuzco, Cultural heritage city of Peru, Cusco World Heritage Site, etc.: historic city of Peru, capital of the Department of Cusco / is instance of Historic district / is instance of historic district / is instance of urban area / is instance of big city / is instance of city
4. Bauhaus and its Sites in Weimar, Dessau and Bernau (wd:Q14863645, matched via Bauhaus World Heritage Site), also known as Bauhaus World Heritage Site: Joint World Heritage Site, comprising six separate sites associated with Bauhaus art school, designated in 1996, extended 2017 / is instance of group of structures or buildings
5. Tentative World Heritage Site (wd:Q1459900), also known as Tentative List for future World Heritage Sites, UNESCO World Heritage Tentative List, UNESCO World Heritage Tentative Lists, World Heritage Tentative List: is instance of heritage register / is subclass of cultural heritage / is subclass of Natural heritage / is subclass of natural heritage / Wikimedia list article / Wikimedia list article / Wikimedia list article
6. IUGS Geological Heritage Site (wd:Q117834546, matched via World Geological Heritage Site), also known as Geological Heritage Site, World Geological Heritage Site: place of significance with geological elements and/or processes of international scientific relevance / is instance of heritage designation / is instance of heritage register / is subclass of cultural heritage / is subclass of natural heritage / is subclass of Natural heritage / is subclass of Geoheritage
7. World Heritage Site id (wd:Q19832918): is instance of cultural heritage identifier
8. World Heritage Mixed Site (wd:Q52683527): is subclass of UNESCO World Heritage Site / is instance of heritage designation / is subclass of World Heritage Site / is subclass of cultural heritage / is subclass of natural heritage / is subclass of Natural heritage
9. Cornwall and West Devon Mining Landscape (wd:Q464566, matched via Cornish Mining World Heritage Site), also known as Cornish Mining World Heritage Site, Cornwall and West Devon Mining Landscape World Heritage Site: is instance of cultural landscape / cultural landscape
10. WikiProject World Heritage Sites (wd:Q6907702), also known as Wikivoyage:World Heritage Expedition: Wikimedia subject-area collaboration / is instance of WikiProject

[Tool]
Top 10 entity alternatives:
1. UNESCO World Heritage Site buffer zone (wd:Q64364418): buffer zone of a UNESCO world heritage site / is subclass of buffer zone
2. World Heritage Site buffer zones: Statements of fact or aspiration? (wd:Q58526085): scholarly article by Sally M. Foster published in January 2002 / is instance of scholarly article / is instance of academic article
3. UNESCO World Heritage Site plaque (wd:Q103349520): is subclass of commemorative plaque
4. UNESCO world natural heritage site (wd:Q16617071): is subclass of UNESCO World Heritage Site / UNESCO world natural heritage sites list / is instance of heritage designation / is subclass of World Heritage Site / is subclass of Natural heritage / is subclass of natural heritage
5. part of UNESCO World Heritage Site (wd:Q43113623), also known as inscribed component, part of WHS: component forming part of a UNESCO World Heritage Site / is subclass of cultural heritage / is subclass of Natural heritage / is subclass of natural heritage
6. UNESCO world cultural heritage site (wd:Q96212111): is subclass of UNESCO World Heritage Site / is instance of heritage designation / is subclass of World Heritage Site / is subclass of cultural heritage
7. Melaka UNESCO World Heritage Site (wd:Q131465827): is instance of UNESCO World Heritage Site / is instance of World Heritage Site / UNESCO World Heritage site
8. George Town UNESCO World Heritage Site (wd:Q131465681): is instance of UNESCO World Heritage Site / is instance of World Heritage Site / UNESCO World Heritage site
9. UNESCO World Heritage Site record modification (wd:Q29778318): is subclass of UNESCO World Heritage Site / is subclass of World Heritage Site
10. World Heritage Sites in Uganda (wd:Q126266868, matched via UNESCO World Heritage Sites in Uganda), also known as Heritage Sites in Uganda, Heritage Sites of Uganda, UNESCO World Heritage Sites in Uganda: A Ugandan place of significance listed by UNESCO / is subclass of UNESCO World Heritage Site / is subclass of World Heritage Site

[Tool]
Top 10 entity alternatives:
1. Kuril Islands dispute (wd:Q389717), also known as Defence of the Kuril Islands, Northern Territories dispute: disagreement between Japan and Russia over sovereignty of the South Kuril Islands / is instance of territorial dispute
2. Kuril Islands (wd:Q80389), also known as Chishima Islands, Kurile Islands: island chain located in Northeast Asia administered by Russia / is instance of disputed territory / is instance of archipelago
3. Senkaku Islands dispute (wd:Q192526): territorial dispute between over uninhabited islands in the Pacific / is instance of territorial dispute
4. Spratly Islands dispute (wd:Q902885): is instance of territorial dispute / territorial dispute
5. Falkland Islands sovereignty dispute (wd:Q4379537, matched via Falkland Islands dispute), also known as Argentine–British territorial dispute, Falkland Islands dispute, Malvinas Islands dispute, Malvinas Islands sovereignty dispute: dispute between Argentina and the United Kingdom / is instance of territorial dispute
6. South Kuril Islands (wd:Q11401819), also known as Etorofu, Habomai, Kunashiri and Shikotan Islands, Hoppo Region, Minami chishima, Southern Kuriles, South Kurils: southern part of the Greater Kuril Ridge, controlled by Russia, claimed by Japan / is instance of disputed territory / is instance of island group / is instance of archipelago
7. Kuril Islands (wd:Q115925578): is instance of Wikimedia permanent duplicated page / is instance of Wikimedia permanent duplicate item / Wikimedia permental duplicated item page
8. Kuril Islands (wd:Q20870255): scholarly article by Aleksandr Polonskiy / is instance of scholarly article / is instance of academic article
9. 2006 Kuril Islands earthquake (wd:Q3272771), also known as Japan and Russia on tsunami alert: is instance of Wikinews article / is instance of natural disaster / is instance of Earthquake / is instance of earthquake / is instance of disaster / earthquake in Japan / Wikinews article / Wikinews article
10. 2007 Kuril Islands earthquake (wd:Q3274126): earthquake occurred east of the Kuril Islands on 13 January 2007 / is instance of natural disaster / is instance of Earthquake / is instance of earthquake / is instance of disaster

[Assistant]
Now I need to retrieve for each of the given entities: distinct entities among the list (some names could point to multiple items but we should pick the relevant one), their population, area in sq km, and date of the population data, considering only the latest available population date. Exclude area statements that apply to lagoon/World Heritage buffers/Kuril dispute if qualifiers indicate that. I'll identify the QIDs chosen:

- South Korea: wd:Q884
- Norfolk Island: wd:Q31057
- Wallis and Futuna: wd:Q35555
- Tristan da Cunha: wd:Q220982 (administrative territory)
- Christmas Island: wd:Q31063
- Galápagos Province: wd:Q475038

I'll build a SPARQL query to get for each item:
- ?item
- ?itemLabel (rdfs:label @en optional)
- latest population value and its date: population property P1082 with qualifiers P585 (point in time). Need to get latest date. Approach: For each population statement, get ?populationValue and ?populationDate (psv:P1082 gives value node). Then select the one with max(?populationDate) using GROUP BY and MAX. But SPARQL needs to retrieve the statement node? Pattern: ?item p:P1082 ?popStatement. ?popStatement ps:P1082 ?popValNode. ?popValNode wikibase:quantityAmount ?popAmount . Also ?popStatement pq:P585 ?date . Or simpler: ?item p:P1082 ?popStatement . ?popStatement ps:P1082 ?popValue . ?popStatement pq:P585 ?date . But ps:P1082 returns the value as an entity or literal? For population it's usually a quantity literal with amount. Use psv/P1082 as earlier pattern. Example: ?item p:P1082 ?popStmt . ?popStmt psv:P1082 ?popVal . ?popVal wikibase:quantityAmount ?popAmount . ?popStmt pq:P585 ?popDate . Then pick MAX(popDate) via subquery.

Also area: P2046. But we must exclude area statements with qualifiers indicating applies to lagoon/WorldHeritage/buffer/kuril. Qualifiers might be pq:P642? property P642 "of (applies to)". The developer noted P642 exists but deprecated. However in data sometimes P642 is used. Also properties indicating "applies to part" P518, "applies to jurisdiction" P1001 maybe. But user said exclude areas that apply to lagoons, World Heritage Sites, UNESCO buffer zones, and the Kuril Islands dispute, if this information is available. So in SPARQL we can filter out area statements where the statement has a qualifier pq:P642 or pq:P518 or pq:P1001 or pq:P3005 with object being one of the items we've found for lagoon (wd:Q187223), World Heritage Site (wd:Q9259), UNESCO buffer zone (wd:Q64364418), Kuril Islands dispute (wd:Q389717) or Kuril Islands (wd:Q80389) or South Kuril Islands (wd:Q11401819). So pattern: OPTIONAL { ?areaStmt pq:P642 ?appliesTo . } and then FILTER(!bound(?appliesTo) || (?appliesTo NOT IN (list))). But need to ensure we exclude when bound and equals one of these. So: FILTER( !bound(?appliesTo) || (?appliesTo NOT IN (wd:Q187223, wd:Q9259, wd:Q64364418, wd:Q389717, wd:Q80389, wd:Q11401819)) )

But qualifiers could also use P518 or P3005 or P1001. So do OPTIONAL for each and exclude if any equals those items. So create OPTIONAL {?areaStmt pq:P642 ?appliesTo.} OPTIONAL {?areaStmt pq:P518 ?appliesPart.} OPTIONAL {?areaStmt pq:P1001 ?appliesJur.} OPTIONAL {?areaStmt pq:P3005 ?validInPlace.} Then filter: none of these are bound to the unwanted items. That is: FILTER( (!bound(?appliesTo) || ?appliesTo NOT IN (...)) && (!bound(?appliesPart) || ?appliesPart NOT IN (...)) && ... )

Now get area value amount: as before psv:P2046 -> wikibase:quantityAmount. Choose area in sq km; unit check: wikibase:quantityUnit points to wd:Q712226 (square kilometre). Some area statements may have different units; better to normalize? Values have normalized values but our tool earlier showed wikibase:quantityNormalized exists. It's a node v: ... and that node refers to normalized amount. But easier: get wikibase:quantityAmount and wikibase:quantityUnit. If unit is square kilometre or not, but user asked area in square kilometers; likely values are in square kilometres already. Could check unit and if not in sq km, use normalized value? But developer rules: do computation only in SPARQL. We can retrieve both amount and unit; but user wants area in square kilometers — maybe better to return the values as they are in Wikidata, with unit; but requirement said "area in square kilometers" so must ensure unit is square kilometre. We can restrict to area statements where quantityUnit is wd:Q712226 (square kilometre) OR use wikibase:quantityNormalized which likely has amount in standard units? The normalized value might be given in square km. Using normalized: ?areaVal wdt? Wait v: nodes are blank nodes? But pattern: ?areaStmt psv:P2046 ?areaValueNode . ?areaValueNode wikibase:quantityAmount ?areaAmount . ?areaValueNode wikibase:quantityUnit ?areaUnit . ?areaValueNode wikibase:quantityNormalized ?areaNormNode . And ?areaNormNode wikibase:quantityAmount ?areaNormAmount . I can prefer areaNormAmount which is normalized to SI units (square metre?) Hmm normalized might be in square meters? But earlier for Galápagos: amount 8233.11 and normalized node present. For the 8233.11 entry, normalized had v:c910..., earlier for 8010, normalized v:51fa... Let's inspect normalized amount to see unit.

[Tool]
Got 4 rows and 3 columns:
| subject                            | property                    | object                             |
| ---------------------------------- | --------------------------- | ---------------------------------- |
| v:c910c1af5a797f46f3ac60ced5c9387f | wikibase:quantityUnit       | square metre (wd:Q25343)           |
| v:c910c1af5a797f46f3ac60ced5c9387f | wikibase:quantityAmount     | 8233110000 (xsd:decimal)           |
| v:c910c1af5a797f46f3ac60ced5c9387f | wikibase:quantityNormalized | v:c910c1af5a797f46f3ac60ced5c9387f |
| v:c910c1af5a797f46f3ac60ced5c9387f | rdf:type                    | wikibase:QuantityValue             |

[Assistant]
I'll run a SPARQL query that:
- Uses the specific Wikidata items for the six places.
- Finds the latest population statement (P1082 with qualifier P585) per item.
- Retrieves the population amount and its date.
- Retrieves an area statement (P2046) that does not have qualifiers indicating it applies to lagoons (wd:Q187223), World Heritage Sites (wd:Q9259), UNESCO buffer zones (wd:Q64364418), or the Kuril Islands dispute/regions (wd:Q389717, wd:Q80389, wd:Q11401819).
- Converts the normalized area (which is in square metres) to square kilometres by dividing by 1,000,000.

Now I'll execute the query to get the results.

[Tool]
Got 8 rows and 5 columns:
| item                            | itemLabel               | popAmount              | popDate                             | areaKm                |
| ------------------------------- | ----------------------- | ---------------------- | ----------------------------------- | --------------------- |
| Christmas Island (wd:Q31063)    | Christmas Island (en)   | 1692 (xsd:decimal)     | 2021-08-10T00:00:00Z (xsd:dateTime) | 135 (xsd:decimal)     |
| Galápagos Province (wd:Q475038) | Galápagos Province (en) | 28583 (xsd:decimal)    | 2022-01-01T00:00:00Z (xsd:dateTime) | 8010 (xsd:decimal)    |
| Galápagos Province (wd:Q475038) | Galápagos Province (en) | 28583 (xsd:decimal)    | 2022-01-01T00:00:00Z (xsd:dateTime) | 8233.11 (xsd:decimal) |
| Norfolk Island (wd:Q31057)      | Norfolk Island (en)     | 1739 (xsd:decimal)     | 2021-08-10T00:00:00Z (xsd:dateTime) | 34.6 (xsd:decimal)    |
| Norfolk Island (wd:Q31057)      | Norfolk Island (en)     | 2188 (xsd:decimal)     | 2021-08-10T00:00:00Z (xsd:dateTime) | 34.6 (xsd:decimal)    |
| South Korea (wd:Q884)           | South Korea (en)        | 51628117 (xsd:decimal) | 2022-01-01T00:00:00Z (xsd:dateTime) | 100295 (xsd:decimal)  |
| Tristan da Cunha (wd:Q220982)   | Tristan da Cunha (en)   | 246 (xsd:decimal)      | 2019-01-01T00:00:00Z (xsd:dateTime) | 207 (xsd:decimal)     |
| Wallis and Futuna (wd:Q35555)   | Wallis and Futuna (en)  | 11558 (xsd:decimal)    | 2018-01-01T00:00:00Z (xsd:dateTime) | 274 (xsd:decimal)     |

[Assistant] I'll inspect the population (P1082) statements for Norfolk Island (wd:Q31057) to see why there are two different amounts for the same date.

[Tool]
Got 5 rows and 3 columns:
| subject                    | property             | object                                        |
| -------------------------- | -------------------- | --------------------------------------------- |
| Norfolk Island (wd:Q31057) | population (p:P1082) | s:Q31057-150A74DC-D354-4DD1-8035-A9413A6C5D4C |
| Norfolk Island (wd:Q31057) | population (p:P1082) | s:Q31057-158E6F36-67DE-45F5-ACFC-C2A03D7FA88B |
| Norfolk Island (wd:Q31057) | population (p:P1082) | s:Q31057-190EEDE8-AFD8-478A-9676-D080DF0DFD78 |
| Norfolk Island (wd:Q31057) | population (p:P1082) | s:Q31057-7b215c65-4933-7672-b5cc-cb12cdabcf8b |
| Norfolk Island (wd:Q31057) | population (p:P1082) | s:Q31057-C0D532C3-F0E4-4B68-9DD5-B4FE7BEA3906 |

[Tool]
Got 1 row and 3 columns:
| subject                                       | property               | object                             |
| --------------------------------------------- | ---------------------- | ---------------------------------- |
| s:Q31057-150A74DC-D354-4DD1-8035-A9413A6C5D4C | population (psv:P1082) | v:9d692cf48ce40927766aa7ad1373fdf4 |

[Tool]
Got 3 rows and 3 columns:
| subject                            | property                | object                 |
| ---------------------------------- | ----------------------- | ---------------------- |
| v:9d692cf48ce40927766aa7ad1373fdf4 | wikibase:quantityUnit   | 1 (wd:Q199)            |
| v:9d692cf48ce40927766aa7ad1373fdf4 | wikibase:quantityAmount | 2601 (xsd:decimal)     |
| v:9d692cf48ce40927766aa7ad1373fdf4 | rdf:type                | wikibase:QuantityValue |

[Assistant] That population amount is 2601 with unit 1 (no unit). Let's inspect its statement qualifiers for date.

[Tool]
Got 1 row and 3 columns:
| subject                                       | property                | object                              |
| --------------------------------------------- | ----------------------- | ----------------------------------- |
| s:Q31057-150A74DC-D354-4DD1-8035-A9413A6C5D4C | point in time (pq:P585) | 2001-01-01T00:00:00Z (xsd:dateTime) |

[Tool]
Got 1 row and 3 columns:
| subject                                       | property               | object                             |
| --------------------------------------------- | ---------------------- | ---------------------------------- |
| s:Q31057-158E6F36-67DE-45F5-ACFC-C2A03D7FA88B | population (psv:P1082) | v:80a7370141ab5d0704abf6ed4c6adf73 |

[Tool]
Got 3 rows and 3 columns:
| subject                            | property                | object                 |
| ---------------------------------- | ----------------------- | ---------------------- |
| v:80a7370141ab5d0704abf6ed4c6adf73 | wikibase:quantityUnit   | 1 (wd:Q199)            |
| v:80a7370141ab5d0704abf6ed4c6adf73 | wikibase:quantityAmount | 1739 (xsd:decimal)     |
| v:80a7370141ab5d0704abf6ed4c6adf73 | rdf:type                | wikibase:QuantityValue |

[Tool]
Got 1 row and 3 columns:
| subject                                       | property                | object                              |
| --------------------------------------------- | ----------------------- | ----------------------------------- |
| s:Q31057-158E6F36-67DE-45F5-ACFC-C2A03D7FA88B | point in time (pq:P585) | 2021-08-10T00:00:00Z (xsd:dateTime) |

[Tool]
Got 1 row and 3 columns:
| subject                                       | property               | object                             |
| --------------------------------------------- | ---------------------- | ---------------------------------- |
| s:Q31057-190EEDE8-AFD8-478A-9676-D080DF0DFD78 | population (psv:P1082) | v:e6b4214732e4bc2bec641cf3f3c0d2e5 |

[Tool]
Got 3 rows and 3 columns:
| subject                            | property                | object                 |
| ---------------------------------- | ----------------------- | ---------------------- |
| v:e6b4214732e4bc2bec641cf3f3c0d2e5 | wikibase:quantityUnit   | 1 (wd:Q199)            |
| v:e6b4214732e4bc2bec641cf3f3c0d2e5 | wikibase:quantityAmount | 2302 (xsd:decimal)     |
| v:e6b4214732e4bc2bec641cf3f3c0d2e5 | rdf:type                | wikibase:QuantityValue |

[Tool]
Got 1 row and 3 columns:
| subject                                       | property                | object                              |
| --------------------------------------------- | ----------------------- | ----------------------------------- |
| s:Q31057-190EEDE8-AFD8-478A-9676-D080DF0DFD78 | point in time (pq:P585) | 2011-01-01T00:00:00Z (xsd:dateTime) |

[Tool]
Got 1 row and 3 columns:
| subject                                       | property               | object                             |
| --------------------------------------------- | ---------------------- | ---------------------------------- |
| s:Q31057-7b215c65-4933-7672-b5cc-cb12cdabcf8b | population (psv:P1082) | v:31989c29fb9cebe442b7baad8cc5a59e |

[Tool]
Got 3 rows and 3 columns:
| subject                            | property                | object                 |
| ---------------------------------- | ----------------------- | ---------------------- |
| v:31989c29fb9cebe442b7baad8cc5a59e | wikibase:quantityUnit   | 1 (wd:Q199)            |
| v:31989c29fb9cebe442b7baad8cc5a59e | wikibase:quantityAmount | 1748 (xsd:decimal)     |
| v:31989c29fb9cebe442b7baad8cc5a59e | rdf:type                | wikibase:QuantityValue |

[Tool]
Got 1 row and 3 columns:
| subject                                       | property                | object                              |
| --------------------------------------------- | ----------------------- | ----------------------------------- |
| s:Q31057-7b215c65-4933-7672-b5cc-cb12cdabcf8b | point in time (pq:P585) | 2016-01-01T00:00:00Z (xsd:dateTime) |

[Tool]
Got 1 row and 3 columns:
| subject                                       | property               | object                             |
| --------------------------------------------- | ---------------------- | ---------------------------------- |
| s:Q31057-C0D532C3-F0E4-4B68-9DD5-B4FE7BEA3906 | population (psv:P1082) | v:c8bbb31b7f5b65be3dc6c1f6211faf02 |

[Tool]
Got 3 rows and 3 columns:
| subject                            | property                | object                 |
| ---------------------------------- | ----------------------- | ---------------------- |
| v:c8bbb31b7f5b65be3dc6c1f6211faf02 | wikibase:quantityUnit   | 1 (wd:Q199)            |
| v:c8bbb31b7f5b65be3dc6c1f6211faf02 | wikibase:quantityAmount | 2188 (xsd:decimal)     |
| v:c8bbb31b7f5b65be3dc6c1f6211faf02 | rdf:type                | wikibase:QuantityValue |

[Tool]
Got 1 row and 3 columns:
| subject                                       | property                | object                              |
| --------------------------------------------- | ----------------------- | ----------------------------------- |
| s:Q31057-C0D532C3-F0E4-4B68-9DD5-B4FE7BEA3906 | point in time (pq:P585) | 2021-08-10T00:00:00Z (xsd:dateTime) |

[Assistant] I'll check the ranks of the Norfolk Island population statements for 2021 to prefer a preferred-rank statement if present.

[Tool]
Got 2 rows and 4 columns:
| stmt                                          | rank                   | popAmount          | date                                |
| --------------------------------------------- | ---------------------- | ------------------ | ----------------------------------- |
| s:Q31057-158E6F36-67DE-45F5-ACFC-C2A03D7FA88B | wikibase:NormalRank    | 1739 (xsd:decimal) | 2021-08-10T00:00:00Z (xsd:dateTime) |
| s:Q31057-C0D532C3-F0E4-4B68-9DD5-B4FE7BEA3906 | wikibase:PreferredRank | 2188 (xsd:decimal) | 2021-08-10T00:00:00Z (xsd:dateTime) |

[Assistant]
So for Norfolk Island, there are two population statements with the same date; one has PreferredRank 2188, so the latest preferred value should be 2188. My previous main query returned both 1739 and 2188 because it didn't filter by rank. I need to modify the approach: when selecting the population for latest date, prioritize statement with highest rank (Preferred > Normal > Deprecated). Implementation: For the latest date, choose the statement with MAX(?rankValue) where rank mapping Preferred=2, Normal=1, Deprecated=0. But SPARQL doesn't easily map rank IRIs to numbers. Known ranks are wikibase:PreferredRank, wikibase:NormalRank, wikibase:DeprecatedRank. We can use a VALUES mapping with BIND. For relevant pop statements with popDate=latestDate, compute a numeric rank using a VALUES or IF constructs:

BIND( IF( ?stmtRank = wikibase:PreferredRank, 2, IF(?stmtRank = wikibase:NormalRank, 1, 0)) AS ?rankNum )

But ?stmtRank might be unbound; default NormalRank maybe. Use OPTIONAL {?popStmt2 wikibase:rank ?stmtRank } and then BIND using COALESCE(?stmtRank, wikibase:NormalRank) then mapping.

Then in subselect choose the max rankNum per item and date (but date already max). Actually we had subselect for latestDate; now we need another subselect to pick max rank for that latestDate. Simpler: In the outer query, after matching popStmt2 with date = latestDate, compute ?rankNum and then use a FILTER to keep only those where ?rankNum = ?maxRank, where ?maxRank computed in a subselect per item & date: SELECT ?item ?latestDate (MAX(...rankNum) AS ?maxRank) ... That seems doable.

Let's craft a final query that returns one row per item with latest population amount & date (using highest rank if multiple), and area as before, but area we may pick any qualifying statement; but there might be multiple area statements like Galápagos had two areas 8010 and 8233.11 — our previous query returned both. We should pick the one without disallowed qualifiers but if multiple remain, maybe choose preferred rank? Area statements also have ranks. For Galápagos, two area statements likely both valid; which is correct latest? Need to examine area statements for Galápagos. Let's inspect p:P2046 for Q475038 earlier we saw two. Check their ranks and qualifiers.

[Tool]
Got 2 rows and 3 columns:
| subject                         | property       | object                                         |
| ------------------------------- | -------------- | ---------------------------------------------- |
| Galápagos Province (wd:Q475038) | area (p:P2046) | s:Q475038-47CEF4BA-7B28-4081-ACE2-12F6B418B648 |
| Galápagos Province (wd:Q475038) | area (p:P2046) | s:Q475038-CC8ED2A6-827A-4EA9-891F-8A86505DC879 |

[Tool]
Got 1 row and 3 columns:
| subject                                        | property      | object              |
| ---------------------------------------------- | ------------- | ------------------- |
| s:Q475038-47CEF4BA-7B28-4081-ACE2-12F6B418B648 | wikibase:rank | wikibase:NormalRank |

[Tool]
Got 1 row and 3 columns:
| subject                                        | property      | object                 |
| ---------------------------------------------- | ------------- | ---------------------- |
| s:Q475038-CC8ED2A6-827A-4EA9-891F-8A86505DC879 | wikibase:rank | wikibase:PreferredRank |

[Assistant]
So preferred is 8233.11—should pick preferred. So for area, similarly select statement with max rank. Let's implement selection of area statement per item: choose areaStmt with allowed qualifiers and with max rank.

Thus overall plan:
- Input items
- Subquery A: find latestDate per item (max pq:P585)
- Subquery B: for each item and latestDate find max popRank numeric
- Subquery C or join to pick popStmt with that rank and date and get popAmount
- Subquery D: for area, find area statements that do not have disallowed qualifiers and compute rankNum; pick max rankNum per item; then get corresponding area normalized amount and convert to km2.

Let's write the SPARQL query accordingly.

I'll craft and run it.

[Tool]
SPARQL execution failed:
Invalid SPARQL query: The target variable ?popDate of an AS clause was already used before in the query body.

[Tool] Got no rows and 5 columns

[Tool] Got no rows and 4 columns

[Tool]
Got 105 rows and 5 columns, showing the first 5 and last 5 rows below:
| item                            | itemLabel               | popAmount              | popDate                             | areaKm                |
| ------------------------------- | ----------------------- | ---------------------- | ----------------------------------- | --------------------- |
| Christmas Island (wd:Q31063)    | Christmas Island (en)   | 1692 (xsd:decimal)     | 2021-08-10T00:00:00Z (xsd:dateTime) | 135 (xsd:decimal)     |
| Christmas Island (wd:Q31063)    | Christmas Island (en)   | 1843 (xsd:decimal)     | 2016-08-09T00:00:00Z (xsd:dateTime) | 135 (xsd:decimal)     |
| Galápagos Province (wd:Q475038) | Galápagos Province (en) | 30890 (xsd:decimal)    | 2017-01-01T00:00:00Z (xsd:dateTime) | 8233.11 (xsd:decimal) |
| Galápagos Province (wd:Q475038) | Galápagos Province (en) | 33042 (xsd:decimal)    | 2020-01-01T00:00:00Z (xsd:dateTime) | 8010 (xsd:decimal)    |
| Galápagos Province (wd:Q475038) | Galápagos Province (en) | 9785 (xsd:decimal)     | 1990-01-01T00:00:00Z (xsd:dateTime) | 8010 (xsd:decimal)    |
| ...                             | ...                     | ...                    | ...                                 | ...                   |
| South Korea (wd:Q884)           | South Korea (en)        | 30838302 (xsd:decimal) | 1968-01-01T00:00:00Z (xsd:dateTime) | 100295 (xsd:decimal)  |
| Tristan da Cunha (wd:Q220982)   | Tristan da Cunha (en)   | 246 (xsd:decimal)      | 2019-01-01T00:00:00Z (xsd:dateTime) | 207 (xsd:decimal)     |
| Tristan da Cunha (wd:Q220982)   | Tristan da Cunha (en)   | 293 (xsd:decimal)      | 2016-03-01T00:00:00Z (xsd:dateTime) | 207 (xsd:decimal)     |
| Wallis and Futuna (wd:Q35555)   | Wallis and Futuna (en)  | 11558 (xsd:decimal)    | 2018-01-01T00:00:00Z (xsd:dateTime) | 274 (xsd:decimal)     |
| Wallis and Futuna (wd:Q35555)   | Wallis and Futuna (en)  | 12197 (xsd:decimal)    | 2013-01-01T00:00:00Z (xsd:dateTime) | 274 (xsd:decimal)     |

[Assistant]
The query returned many rows because I didn't restrict to only the latest population per item. The NOT EXISTS trick should have filtered to only those population statements that aren't superseded, but seems to return multiple rows per item because of multiple area alternatives. To ensure one row per item, I should use GROUP BY ?item and aggregate population and area values using MAX or sample. But developer instruction: query should return actual identifiers and may return labels; and we must only return latest population date. Better to produce one row per item. Approach: Use subquery to select the specific popAmount and popDate per item (as earlier but working). The earlier attempt with subselect failed but the reason gave no rows perhaps because of join complexities. Simplify: Subselect for pop: SELECT ?item ?popAmount ?latestDate WHERE { ... } GROUP BY ?item ?popAmount ?latestDate ?rank ... hmm.

Alternative approach: For each item, find the population statement with no other statement with later date or same date higher rank — that's what NOT EXISTS attempted and should yield single popStmt per item. But duplicates were arising due to different area statements making multiple combined rows. Use SELECT DISTINCT ?item ... and maybe use GROUP BY to group and use SAMPLE? But instructions say do not perform additional computation on results outside SPARQL; but grouping and selecting SAMPLE is SPARQL internal — allowed. Use GROUP BY ?item ?itemLabel ?popAmount ?popDate and choose SAMPLE(?areaKm) as ?areaKm to reduce multiple area statements. But area selection used NOT EXISTS to pick the highest rank area, so should be unique; but perhaps some items have no area statements so multiple population rows with different area values? To guarantee one row, use GROUP BY ?item ?itemLabel ?popAmount ?popDate and SAMPLE(?areaKm) will pick one.

Let's modify query to SELECT ?item ?itemLabel ?popAmount ?popDate (SAMPLE(?areaKm) AS ?areaKm) and add GROUP BY ?item ?itemLabel ?popAmount ?popDate. Run.

[Tool]
SPARQL execution failed:
Invalid SPARQL query: The target ?areaKm of an AS clause was already used in the query body.

[Tool]
Got 87 rows and 5 columns, showing the first 5 and last 5 rows below:
| item                            | itemLabel               | popAmount              | popDate                             | areaKm                |
| ------------------------------- | ----------------------- | ---------------------- | ----------------------------------- | --------------------- |
| Christmas Island (wd:Q31063)    | Christmas Island (en)   | 1692 (xsd:decimal)     | 2021-08-10T00:00:00Z (xsd:dateTime) | 135 (xsd:decimal)     |
| Christmas Island (wd:Q31063)    | Christmas Island (en)   | 1843 (xsd:decimal)     | 2016-08-09T00:00:00Z (xsd:dateTime) | 135 (xsd:decimal)     |
| Galápagos Province (wd:Q475038) | Galápagos Province (en) | 9785 (xsd:decimal)     | 1990-01-01T00:00:00Z (xsd:dateTime) | 8233.11 (xsd:decimal) |
| Galápagos Province (wd:Q475038) | Galápagos Province (en) | 42156 (xsd:decimal)    | 1982-01-01T00:00:00Z (xsd:dateTime) | 8233.11 (xsd:decimal) |
| Galápagos Province (wd:Q475038) | Galápagos Province (en) | 33042 (xsd:decimal)    | 2020-01-01T00:00:00Z (xsd:dateTime) | 8233.11 (xsd:decimal) |
| ...                             | ...                     | ...                    | ...                                 | ...                   |
| South Korea (wd:Q884)           | South Korea (en)        | 41621690 (xsd:decimal) | 1987-01-01T00:00:00Z (xsd:dateTime) | 100295 (xsd:decimal)  |
| Tristan da Cunha (wd:Q220982)   | Tristan da Cunha (en)   | 293 (xsd:decimal)      | 2016-03-01T00:00:00Z (xsd:dateTime) | 207 (xsd:decimal)     |
| Tristan da Cunha (wd:Q220982)   | Tristan da Cunha (en)   | 246 (xsd:decimal)      | 2019-01-01T00:00:00Z (xsd:dateTime) | 207 (xsd:decimal)     |
| Wallis and Futuna (wd:Q35555)   | Wallis and Futuna (en)  | 12197 (xsd:decimal)    | 2013-01-01T00:00:00Z (xsd:dateTime) | 274 (xsd:decimal)     |
| Wallis and Futuna (wd:Q35555)   | Wallis and Futuna (en)  | 11558 (xsd:decimal)    | 2018-01-01T00:00:00Z (xsd:dateTime) | 274 (xsd:decimal)     |

[Tool]
Got 2 rows and 3 columns:
| subject                      | property             | object                                        |
| ---------------------------- | -------------------- | --------------------------------------------- |
| Christmas Island (wd:Q31063) | population (p:P1082) | s:Q31063-695CE8C3-25EE-4324-B05B-A7098871F102 |
| Christmas Island (wd:Q31063) | population (p:P1082) | s:Q31063-F67F248B-3F26-4511-849E-BF9310F66CFF |

[Tool]
Got 1 row and 3 columns:
| subject                                       | property               | object                             |
| --------------------------------------------- | ---------------------- | ---------------------------------- |
| s:Q31063-695CE8C3-25EE-4324-B05B-A7098871F102 | population (psv:P1082) | v:bb7f66194c9aaa99e902964300ec8fcb |

[Tool]
Got 3 rows and 3 columns:
| subject                            | property                | object                 |
| ---------------------------------- | ----------------------- | ---------------------- |
| v:bb7f66194c9aaa99e902964300ec8fcb | wikibase:quantityUnit   | 1 (wd:Q199)            |
| v:bb7f66194c9aaa99e902964300ec8fcb | wikibase:quantityAmount | 1692 (xsd:decimal)     |
| v:bb7f66194c9aaa99e902964300ec8fcb | rdf:type                | wikibase:QuantityValue |

[Tool]
Got 1 row and 3 columns:
| subject                                       | property                | object                              |
| --------------------------------------------- | ----------------------- | ----------------------------------- |
| s:Q31063-695CE8C3-25EE-4324-B05B-A7098871F102 | point in time (pq:P585) | 2021-08-10T00:00:00Z (xsd:dateTime) |

[Tool]
Got 1 row and 3 columns:
| subject                                       | property               | object                             |
| --------------------------------------------- | ---------------------- | ---------------------------------- |
| s:Q31063-F67F248B-3F26-4511-849E-BF9310F66CFF | population (psv:P1082) | v:be15bdda19e27aad32d3982b70817234 |

[Tool]
Got 3 rows and 3 columns:
| subject                            | property                | object                 |
| ---------------------------------- | ----------------------- | ---------------------- |
| v:be15bdda19e27aad32d3982b70817234 | wikibase:quantityUnit   | 1 (wd:Q199)            |
| v:be15bdda19e27aad32d3982b70817234 | wikibase:quantityAmount | 1843 (xsd:decimal)     |
| v:be15bdda19e27aad32d3982b70817234 | rdf:type                | wikibase:QuantityValue |

[Tool]
Got 1 row and 3 columns:
| subject                                       | property                | object                              |
| --------------------------------------------- | ----------------------- | ----------------------------------- |
| s:Q31063-F67F248B-3F26-4511-849E-BF9310F66CFF | point in time (pq:P585) | 2016-08-09T00:00:00Z (xsd:dateTime) |

[Assistant]
So Christmas Island latest is 2021 1692, good.

The large result set earlier had many rows because multiple population statements across years included; the NOT EXISTS filter should have eliminated non-latest statements, but the presence of area OPTIONAL and GROUP BY led to duplicates per pop statement? Wait it still returned multiple entries per item because items have multiple pop statements that are each not superseded perhaps because of different dates; but we want only the latest date per item. So need to enforce that popDate is the maximum for that item. Add filter: ?popDate = maxDate per item. Use subselect earlier that gave latestDate per item and join. That earlier failed due to variable conflicts; but we can restructure using subselect for latestDate alone and then join. Let's do:

1) Subselect LatestDate: SELECT ?item (MAX(?popDate) AS ?latestDate) WHERE {?item p:P1082 ?pst . ?pst pq:P585 ?popDate } GROUP BY ?item

Then use that in main body: ?item p:P1082 ?popStmt . ?popStmt pq:P585 ?popDate . FILTER(?popDate = ?latestDate) ... and then choose highest rank among those statements with same date.

To pick the statement with highest rank among same-date statements: use NOT EXISTS to exclude any other statement for same item with same date and higher rank. That should isolate one popStmt per item. That earlier attempt might have failed because of variable naming conflicts; but let's implement it carefully.

Here's query skeleton:

WITH subselect latestDate. Then main:

?item p:P1082 ?popStmt . ?popStmt pq:P585 ?popDate . FILTER(?popDate = ?latestDate) ... compute popRankNum ... FILTER NOT EXISTS { ?item p:P1082 ?otherStmt . ?otherStmt pq:P585 ?otherDate . FILTER(?otherDate = ?popDate) . compute otherRankNum . FILTER(otherRankNum > popRankNum) }

This should ensure one per item. Then area logic same as before with not exists to exclude higher rank area.

Finally group by item to sample area.

Let's write and execute.

[Tool]
SPARQL execution failed:
Invalid SPARQL query: The target variable ?popDate of an AS clause was already used before in the query body.

[Tool]
Got 7 rows and 5 columns:
| item                            | itemLabel               | popAmount              | popDate                             | areaKm               |
| ------------------------------- | ----------------------- | ---------------------- | ----------------------------------- | -------------------- |
| Christmas Island (wd:Q31063)    | Christmas Island (en)   | 1692 (xsd:decimal)     | 2021-08-10T00:00:00Z (xsd:dateTime) | 135 (xsd:decimal)    |
| Galápagos Province (wd:Q475038) | Galápagos Province (en) | 28583 (xsd:decimal)    | 2022-01-01T00:00:00Z (xsd:dateTime) | 8010 (xsd:decimal)   |
| Norfolk Island (wd:Q31057)      | Norfolk Island (en)     | 1739 (xsd:decimal)     | 2021-08-10T00:00:00Z (xsd:dateTime) | 34.6 (xsd:decimal)   |
| Norfolk Island (wd:Q31057)      | Norfolk Island (en)     | 2188 (xsd:decimal)     | 2021-08-10T00:00:00Z (xsd:dateTime) | 34.6 (xsd:decimal)   |
| South Korea (wd:Q884)           | South Korea (en)        | 51628117 (xsd:decimal) | 2022-01-01T00:00:00Z (xsd:dateTime) | 100295 (xsd:decimal) |
| Tristan da Cunha (wd:Q220982)   | Tristan da Cunha (en)   | 246 (xsd:decimal)      | 2019-01-01T00:00:00Z (xsd:dateTime) | 207 (xsd:decimal)    |
| Wallis and Futuna (wd:Q35555)   | Wallis and Futuna (en)  | 11558 (xsd:decimal)    | 2018-01-01T00:00:00Z (xsd:dateTime) | 274 (xsd:decimal)    |

[Tool]
Got 10 rows and 3 columns:
| subject                                        | property                                   | object                                                                                |
| ---------------------------------------------- | ------------------------------------------ | ----------------------------------------------------------------------------------------------- |
| s:Q475038-CC8ED2A6-827A-4EA9-891F-8A86505DC879 | point in time (pq:P585)                    | 2022-01-01T00:00:00Z (xsd:dateTime)                                                             |
| s:Q475038-CC8ED2A6-827A-4EA9-891F-8A86505DC879 | area (ps:P2046)                            | 8233.11 (xsd:decimal)                                                                           |
| s:Q475038-CC8ED2A6-827A-4EA9-891F-8A86505DC879 | determination method or standard (pq:P459) | VIII Censo de Población, VII de Vivienda y I de Comunidades de Ecuador del 2022 (wd:Q112150984) |
| s:Q475038-CC8ED2A6-827A-4EA9-891F-8A86505DC879 | wikibase:rank                              | wikibase:PreferredRank                                                                          |
| s:Q475038-CC8ED2A6-827A-4EA9-891F-8A86505DC879 | rdf:type                                   | wikibase:BestRank                                                                               |
| s:Q475038-CC8ED2A6-827A-4EA9-891F-8A86505DC879 | prov:wasDerivedFrom                        | ref:b9e4d70ce80f544a28af1cebc240f3619419a23f                                                    |
| s:Q475038-CC8ED2A6-827A-4EA9-891F-8A86505DC879 | point in time (pqv:P585)                   | v:b2d5337aae66cfc2d138cc6fa7c4e368                                                              |
| s:Q475038-CC8ED2A6-827A-4EA9-891F-8A86505DC879 | area (psn:P2046)                           | v:c910c1af5a797f46f3ac60ced5c9387f                                                              |
| s:Q475038-CC8ED2A6-827A-4EA9-891F-8A86505DC879 | area (psv:P2046)                           | v:7e41a3007cee8db30db9d9ebc599503a                                                              |
| s:Q475038-CC8ED2A6-827A-4EA9-891F-8A86505DC879 | rdf:type                                   | wikibase:Statement                                                                              |

[Tool]
Got 9 rows and 3 columns:
| subject                                        | property                                   | object                                       |
| ---------------------------------------------- | ------------------------------------------ | -------------------------------------------- |
| s:Q475038-47CEF4BA-7B28-4081-ACE2-12F6B418B648 | point in time (pq:P585)                    | 2010-01-01T00:00:00Z (xsd:dateTime)          |
| s:Q475038-47CEF4BA-7B28-4081-ACE2-12F6B418B648 | area (ps:P2046)                            | 8010 (xsd:decimal)                           |
| s:Q475038-47CEF4BA-7B28-4081-ACE2-12F6B418B648 | determination method or standard (pq:P459) | 2010 census of Ecuador (wd:Q8966435)         |
| s:Q475038-47CEF4BA-7B28-4081-ACE2-12F6B418B648 | wikibase:rank                              | wikibase:NormalRank                          |
| s:Q475038-47CEF4BA-7B28-4081-ACE2-12F6B418B648 | rdf:type                                   | wikibase:Statement                           |
| s:Q475038-47CEF4BA-7B28-4081-ACE2-12F6B418B648 | prov:wasDerivedFrom                        | ref:ce8e2985e8aae2b1bf72537d4f6ae8117794e497 |
| s:Q475038-47CEF4BA-7B28-4081-ACE2-12F6B418B648 | point in time (pqv:P585)                   | v:4f272fae38ee73a331afd0407cdc74b9           |
| s:Q475038-47CEF4BA-7B28-4081-ACE2-12F6B418B648 | area (psn:P2046)                           | v:51fa2204c89c48486b5bc949d5bc4e1b           |
| s:Q475038-47CEF4BA-7B28-4081-ACE2-12F6B418B648 | area (psv:P2046)                           | v:c0e6c7896f0f7fdb3756665236395f21           |

[Tool]
Got 7 rows and 5 columns:
| item                            | itemLabel               | popAmount              | popDate                             | areaKm               |
| ------------------------------- | ----------------------- | ---------------------- | ----------------------------------- | -------------------- |
| Christmas Island (wd:Q31063)    | Christmas Island (en)   | 1692 (xsd:decimal)     | 2021-08-10T00:00:00Z (xsd:dateTime) | 135 (xsd:decimal)    |
| Galápagos Province (wd:Q475038) | Galápagos Province (en) | 28583 (xsd:decimal)    | 2022-01-01T00:00:00Z (xsd:dateTime) | 8010 (xsd:decimal)   |
| Norfolk Island (wd:Q31057)      | Norfolk Island (en)     | 1739 (xsd:decimal)     | 2021-08-10T00:00:00Z (xsd:dateTime) | 34.6 (xsd:decimal)   |
| Norfolk Island (wd:Q31057)      | Norfolk Island (en)     | 2188 (xsd:decimal)     | 2021-08-10T00:00:00Z (xsd:dateTime) | 34.6 (xsd:decimal)   |
| South Korea (wd:Q884)           | South Korea (en)        | 51628117 (xsd:decimal) | 2022-01-01T00:00:00Z (xsd:dateTime) | 100295 (xsd:decimal) |
| Tristan da Cunha (wd:Q220982)   | Tristan da Cunha (en)   | 246 (xsd:decimal)      | 2019-01-01T00:00:00Z (xsd:dateTime) | 207 (xsd:decimal)    |
| Wallis and Futuna (wd:Q35555)   | Wallis and Futuna (en)  | 11558 (xsd:decimal)    | 2018-01-01T00:00:00Z (xsd:dateTime) | 274 (xsd:decimal)    |

[Tool] Got no rows and 5 columns

[Tool]
Got 6 rows and 5 columns:
| item                            | itemLabel               | popAmount              | popDate                             | areaKm                |
| ------------------------------- | ----------------------- | ---------------------- | ----------------------------------- | --------------------- |
| Christmas Island (wd:Q31063)    | Christmas Island (en)   | 1692 (xsd:decimal)     | 2021-08-10T00:00:00Z (xsd:dateTime) | 135 (xsd:decimal)     |
| Galápagos Province (wd:Q475038) | Galápagos Province (en) | 28583 (xsd:decimal)    | 2022-01-01T00:00:00Z (xsd:dateTime) | 8233.11 (xsd:decimal) |
| Norfolk Island (wd:Q31057)      | Norfolk Island (en)     | 2188 (xsd:decimal)     | 2021-08-10T00:00:00Z (xsd:dateTime) | 34.6 (xsd:decimal)    |
| South Korea (wd:Q884)           | South Korea (en)        | 51466201 (xsd:decimal) | 2017-01-01T00:00:00Z (xsd:dateTime) | 100295 (xsd:decimal)  |
| Tristan da Cunha (wd:Q220982)   | Tristan da Cunha (en)   | 246 (xsd:decimal)      | 2019-01-01T00:00:00Z (xsd:dateTime) | 207 (xsd:decimal)     |
| Wallis and Futuna (wd:Q35555)   | Wallis and Futuna (en)  | 11558 (xsd:decimal)    | 2018-01-01T00:00:00Z (xsd:dateTime) | 274 (xsd:decimal)     |

[Tool]
Got 8 rows and 5 columns:
| item                            | itemLabel               | popAmount              | popDate                             | areaKm                |
| ------------------------------- | ----------------------- | ---------------------- | ----------------------------------- | --------------------- |
| Christmas Island (wd:Q31063)    | Christmas Island (en)   | 1692 (xsd:decimal)     | 2021-08-10T00:00:00Z (xsd:dateTime) | 135 (xsd:decimal)     |
| Galápagos Province (wd:Q475038) | Galápagos Province (en) | 28583 (xsd:decimal)    | 2022-01-01T00:00:00Z (xsd:dateTime) | 8233.11 (xsd:decimal) |
| Galápagos Province (wd:Q475038) | Galápagos Province (en) | 28583 (xsd:decimal)    | 2022-01-01T00:00:00Z (xsd:dateTime) | 8233.11 (xsd:decimal) |
| Norfolk Island (wd:Q31057)      | Norfolk Island (en)     | 2188 (xsd:decimal)     | 2021-08-10T00:00:00Z (xsd:dateTime) | 34.6 (xsd:decimal)    |
| Norfolk Island (wd:Q31057)      | Norfolk Island (en)     | 2188 (xsd:decimal)     | 2021-08-10T00:00:00Z (xsd:dateTime) | 34.6 (xsd:decimal)    |
| South Korea (wd:Q884)           | South Korea (en)        | 51628117 (xsd:decimal) | 2022-01-01T00:00:00Z (xsd:dateTime) | 100295 (xsd:decimal)  |
| Tristan da Cunha (wd:Q220982)   | Tristan da Cunha (en)   | 246 (xsd:decimal)      | 2019-01-01T00:00:00Z (xsd:dateTime) | 207 (xsd:decimal)     |
| Wallis and Futuna (wd:Q35555)   | Wallis and Futuna (en)  | 11558 (xsd:decimal)    | 2018-01-01T00:00:00Z (xsd:dateTime) | 274 (xsd:decimal)     |

[Tool]
Got 6 rows and 5 columns:
| item                            | itemLabel               | popAmount              | popDate                             | areaKm                |
| ------------------------------- | ----------------------- | ---------------------- | ----------------------------------- | --------------------- |
| Christmas Island (wd:Q31063)    | Christmas Island (en)   | 1692 (xsd:decimal)     | 2021-08-10T00:00:00Z (xsd:dateTime) | 135 (xsd:decimal)     |
| Galápagos Province (wd:Q475038) | Galápagos Province (en) | 28583 (xsd:decimal)    | 2022-01-01T00:00:00Z (xsd:dateTime) | 8233.11 (xsd:decimal) |
| Norfolk Island (wd:Q31057)      | Norfolk Island (en)     | 2188 (xsd:decimal)     | 2021-08-10T00:00:00Z (xsd:dateTime) | 34.6 (xsd:decimal)    |
| South Korea (wd:Q884)           | South Korea (en)        | 51628117 (xsd:decimal) | 2022-01-01T00:00:00Z (xsd:dateTime) | 100295 (xsd:decimal)  |
| Tristan da Cunha (wd:Q220982)   | Tristan da Cunha (en)   | 246 (xsd:decimal)      | 2019-01-01T00:00:00Z (xsd:dateTime) | 207 (xsd:decimal)     |
| Wallis and Futuna (wd:Q35555)   | Wallis and Futuna (en)  | 11558 (xsd:decimal)    | 2018-01-01T00:00:00Z (xsd:dateTime) | 274 (xsd:decimal)     |

[Tool] Stopping