PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
SELECT ?year ( COUNT( DISTINCT ?ensemble ) AS ?count ) WHERE {
  ?ensemble wdt:P31 / wdt:P279 * wd:Q2088357 .
  ?ensemble wdt:P571 ?inception .
  BIND( STR( ?inception ) AS ?inceptionStr ) FILTER ( REGEX( ?inceptionStr , "^[0-9]{4}" ) ) BIND( xsd:integer ( SUBSTR( ?inceptionStr , 1 , 4 ) ) AS ?year ) FILTER ( ?year >= 1000 && ?year <= 2100 )
}
GROUP BY ?year
ORDER BY ?year

Using entities:
- musical ensemble (wd:Q2088357), also known as ensemble, music ensemble: is subclass of performing arts group / is subclass of music organisation / is subclass of music organization / group of people who perform instrumental and/or vocal music, with the ensemble typically known by a distinct name / group of people who perform instrumental and/or vocal music, with the ensemble typically known by a distinct name / group of people who perform instrumental and/or vocal music, with the ensemble typically known by a distinct name

Using properties:
- subclass of (wd:P279 as wdt), also known as all members of this class also belong to, category of, form of, has superclass, is a class of, etc.: this item is a subclass (subset) of that item; ALL instances ... of volcanic landform); Everest is an instance of mountain / this item is a subclass (subset) of that item; all instances ... instance of volcanic landform); K2 is an instance of mountain / this item is a subclass (subset) of that item; all instances ... instance of volcanic landform); K2 is an instance of mountain / this item is a subclass (subset) of that item; all instances ... instance of volcanic landform); K2 is an instance of mountain
- instance of (wd:P31 as wdt), also known as example of, has type, is a, is an, is of type, etc.: that class of which this subject is a particular example and ... a subclass of mountain (and an instance of volcanic landform) / type to which this subject corresponds/belongs. Different ... and the volcano is a type (instance) of volcanic landform
- inception (wd:P571 as wdt), also known as broke ground, built, commenced on date, commencement date, completed, etc.: is subproperty of start time / date or point in time when the organisation / object was founded / created / time when an entity begins to exist; for date of official opening use P1619 / time when an entity begins to exist; for date of official opening use P1619

Answer:
I executed a query that counts distinct musical ensembles (items instance-of or instance-of-subclass of wd:Q2088357) grouped by the year of their inception (P571). The query filters inception values to those whose string form begins with four digits, converts that to an integer year, restricts the year to the range 1000–2100, groups by year, and orders by year.

Results summary from the query run: 294 rows (distinct years) were returned. A few sample rows: 1127 → 1, 1200 → 1, 1213 → 1, ... recent years: 2021 → 140, 2022 → 134, 2023 → 81, 2024 → 41, 2025 → 9.

If you want the complete year-by-year table, or output in CSV/JSON, tell me which format and I will provide it.

I executed a query that counts distinct musical ensembles (items instance-of or instance-of-subclass of wd:Q2088357) grouped by the year of their inception (P571). The query filters inception values to those whose string form begins with four digits, converts that to an integer year, restricts the year to the range 1000–2100, groups by year, and orders by year.

Results summary from the query run: 294 rows (distinct years) were returned. A few sample rows: 1127 → 1, 1200 → 1, 1213 → 1, ... recent years: 2021 → 140, 2022 → 134, 2023 → 81, 2024 → 41, 2025 → 9.

If you want the complete year-by-year table, or output in CSV/JSON, tell me which format and I will provide it.

SPARQL query over wikidata:
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
SELECT ?year ( COUNT( DISTINCT ?ensemble ) AS ?count ) WHERE {
  ?ensemble wdt:P31 / wdt:P279 * wd:Q2088357 .
  ?ensemble wdt:P571 ?inception .
  BIND( STR( ?inception ) AS ?inceptionStr ) FILTER ( REGEX( ?inceptionStr , "^[0-9]{4}" ) ) BIND( xsd:integer ( SUBSTR( ?inceptionStr , 1 , 4 ) ) AS ?year ) FILTER ( ?year >= 1000 && ?year <= 2100 )
}
GROUP BY ?year
ORDER BY ?year

Using entities:
- musical ensemble (wd:Q2088357), also known as ensemble, music ensemble: is subclass of performing arts group / is subclass of music organisation / is subclass of music organization / group of people who perform instrumental and/or vocal music, with the ensemble typically known by a distinct name / group of people who perform instrumental and/or vocal music, with the ensemble typically known by a distinct name / group of people who perform instrumental and/or vocal music, with the ensemble typically known by a distinct name

Using properties:
- subclass of (wd:P279 as wdt), also known as all members of this class also belong to, category of, form of, has superclass, is a class of, etc.: this item is a subclass (subset) of that item; ALL instances ... of volcanic landform); Everest is an instance of mountain / this item is a subclass (subset) of that item; all instances ... instance of volcanic landform); K2 is an instance of mountain / this item is a subclass (subset) of that item; all instances ... instance of volcanic landform); K2 is an instance of mountain / this item is a subclass (subset) of that item; all instances ... instance of volcanic landform); K2 is an instance of mountain
- instance of (wd:P31 as wdt), also known as example of, has type, is a, is an, is of type, etc.: that class of which this subject is a particular example and ... a subclass of mountain (and an instance of volcanic landform) / type to which this subject corresponds/belongs. Different ... and the volcano is a type (instance) of volcanic landform
- inception (wd:P571 as wdt), also known as broke ground, built, commenced on date, commencement date, completed, etc.: is subproperty of start time / date or point in time when the organisation / object was founded / created / time when an entity begins to exist; for date of official opening use P1619 / time when an entity begins to exist; for date of official opening use P1619

Execution result:
Got 294 rows and 2 columns, showing the first 5 and last 5 rows below:
| year           | count         |
| -------------- | ------------- |
| 1127 (xsd:int) | 1 (xsd:int)   |
| 1200 (xsd:int) | 1 (xsd:int)   |
| 1201 (xsd:int) | 2 (xsd:int)   |
| 1210 (xsd:int) | 1 (xsd:int)   |
| 1213 (xsd:int) | 1 (xsd:int)   |
| ...            | ...           |
| 2021 (xsd:int) | 140 (xsd:int) |
| 2022 (xsd:int) | 134 (xsd:int) |
| 2023 (xsd:int) | 81 (xsd:int)  |
| 2024 (xsd:int) | 41 (xsd:int)  |
| 2025 (xsd:int) | 9 (xsd:int)   |

[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.

Available knowledge graphs:
- wikidata at http://localhost:7001 with prefix index for entities and similarity index for properties, and notes:
  - P106 = occupation. Use wdt:P106 to get occupations and fetch English labels with rdfs:label + FILTER(LANG(?label)="en"). When returning human occupations confirm the subject is human (wdt:P31 wd:Q5) to avoid non-human items.
  - Population (P1082) and tabular (P4179): use wdt:P1082 for quick/direct values; for time-series/point-in-time use p:P1082 + ps:P1082 + pq:P585 and ORDER BY pq:P585 DESC. Inspect statement qualifiers (e.g., 'applies to part') and prov:wasDerivedFrom references (pr:P854 etc.) to detect city-proper vs metro/prefecture scopes before using values.
  - Common person properties: P31 (instance of human Q5), P106 (occupation), P569 (date of birth), P19 (place of birth), P27 (country of citizenship), P21 (sex/gender), P166 (award received). Use wdt: for direct values when possible.
  - P17 (country) can be incomplete/misleading for places (historical/overseas tags). To get modern cities in a country combine: instance-of city (P31=Q515) + wdt:P17 OR use wdt:P131* to find an admin parent whose wdt:P17 = the country. Also cross-check coordinates (P625) or admin hierarchy to spot outliers.
  - When filtering by date of birth (P569) use xsd:dateTime comparisons (e.g. >= "1900-01-01T00:00:00Z"^^xsd:dateTime). Be aware many items have year-only or imprecise dates and coverage is biased toward notable/public figures (sportspeople, politicians, artists).
  - To retrieve qualifiers (e.g., award year) use the statement/qualifier pattern: p:Pxxx / ps:Pxxx / pq:P585. Use wdt:Pxxx for normalized/direct values when you don't need qualifiers. Example: p:P166 + pq:P585 gives award year.
  - To get a person's occupations: use wdt:P106 for direct/normalized values and rdfs:label for human-readable names (FILTER(LANG(...))). Example: wd:Q... wdt:P106 ?occ . ?occ rdfs:label ?occLabel . FILTER(LANG(?occLabel)="en").
  - P166 = award received. Use wdt:P166 for normalized/direct values when you only need award items. To get award years or qualifiers use p:P166 / ps:P166 / pq:P585. Many statements lack pq:P585 — use OPTIONAL { ?stmt pq:P585 ?date } and ORDER BY DESC(?date). When listing award winners, filter ?person wdt:P31 wd:Q5 to ensure humans.
  - Population time-series pattern: wd:Q... p:P1082 ?stmt . ?stmt ps:P1082 ?pop . OPTIONAL { ?stmt pq:P585 ?date } . ORDER BY DESC(?date). pq:P585 is the point-in-time qualifier. IMPORTANT: time-series may mix scopes (city proper vs metro) — e.g., Tokyo has a 2016 entry ~38,140,000 likely metro vs smaller city figures. Inspect qualifiers/references for scope before use.
  - Use wdt:P131* to traverse the admin hierarchy and compare wdt:P17 on the place vs an admin parent to detect historical/colonial country assignments. When mismatches appear, inspect the admin parent's instance-of (P31), labels, qualifiers and references to interpret the historical scope.
  - wdt:P106 often yields multiple occupations for a person. Use GROUP_CONCAT(DISTINCT ?occLabel; separator=", ") or return multiple rows. Always fetch labels with rdfs:label + FILTER(LANG(?label)="en") to get readable occupation names.
  - When a search_entity returns multiple hits (person vs sculpture vs memorial), confirm you selected the human/statements by checking wdt:P31 (instance of) and relevant wdt: properties (e.g., wdt:P106). This avoids using a non-human QID by mistake.
  - search_autocomplete can be constrained with a SPARQL pattern containing ?search (e.g., SELECT * WHERE { ?search wdt:P31 wd:Q5 }). Use constraints to focus results (e.g., humans) and avoid ambiguous fallbacks; if it returns no results, fallback to search_entity and verify wdt:P31.
  - Use search_property_of_entity to find relevant properties for an entity (e.g., 'award' -> P166) and search_object_of_property to discover candidate objects (e.g., 'physicist' for P106). This reduces guessing P/Q ids and surfaces qualifiers.
  - Inspect statement references and qualifiers: use prov:wasDerivedFrom on p: statements to find sources, and check qualifiers (e.g., 'applies to part' or other scope qualifiers) to disambiguate city vs metro vs admin area. Reference labels can be empty; inspect reference node properties for URLs or publication dates.

Index types used for entities and properties:
- Prefix index: Retrieves items by overlap between query keywords and item words. The query keywords can match item words exactly or as prefixes.
- Similarity index: Retrieves items by cosine similarity between their embeddings and the query embedding.

General notes across knowledge graphs:
- Use rdfs:label + FILTER(LANG(?label)="en") for labels; avoid SERVICE wikibase:label. Use wdt:Pxxx for normalized/direct values when qualifiers aren't needed. Use p:Pxxx / ps:Pxxx / pq:Pxxx to access statement qualifiers (e.g., award year via pq:P585). When dates matter, prefer xsd:dateTime and watch for year-only precision.
- Practical query patterns: use rdfs:label + FILTER(LANG(...)) for labels. Use wdt:Pxxx for direct/normalized values when qualifiers aren't needed. Use p:Pxxx / ps:Pxxx / pq:Pxxx to access qualifiers (dates via pq:P585). For dates use xsd:dateTime and expect year-only precision. For places: combine P17 with P131 or coordinate (P625) filters to avoid historical/overseas mismatches.
- Use OPTIONAL for pq: qualifiers (e.g., pq:P585), sort by qualifier (ORDER BY pq:P585 DESC) to prefer recent values. Use GROUP_CONCAT to combine multiple labels/values in one row. Watch for typed literals (xsd:dateTime, xsd:decimal) when filtering or sorting.
- Before querying, use search_entity to resolve human-friendly names to wd:Q identifiers and verify instance-of (e.g., check wdt:P31 = wd:Q5 for humans) to avoid ambiguous matches. Prefer the top match but programmatically confirm P31 before using its data.
- Use search_property to confirm property identifiers (e.g., "country" -> P17) before embedding them in queries. This prevents mistakes from assuming an ID and helps pick the best property if multiple choices exist.
- search_autocomplete can fall back to an unconstrained search or error when there are too many candidates. If this happens (e.g., "more than the maximum supported number of subject candidates"), retry with narrower constraints such as instance-of (wdt:P31), additional type filters, or short prefixes to reduce the candidate set; otherwise fallback to search_entity and verify wdt:P31.
- Use list(...) to inspect all triples on an entity for exploration, but expect large results for notable items. Prefer wdt: properties or targeted p:/ps:/pq: patterns in SPARQL when you need normalized values or qualifiers, respectively.
- Before embedding property or item IDs in SPARQL, use search_property, search_property_of_entity, and search_object_of_property to discover the appropriate P/PID or object QIDs. This reduces errors from guessing IDs and surfaces better property alternatives and qualifiers.
- search_constrained and search_autocomplete can return no results for constrained queries or when the index is large. If they fail, fallback to search_entity + verify P31 (or use search_property_of_entity). Constrain with instance-of (wdt:P31) or other properties in the SPARQL to improve matches.
- When selecting awards by year, prefer xsd:dateTime range filters (e.g., >= "2001-01-01T00:00:00Z"^^xsd:dateTime && < "2002-01-01T00:00:00Z"^^xsd:dateTime) instead of YEAR() for portability and precision.
- When selecting award winners via wdt:P166, filter ?person wdt:P31 wd:Q5 to ensure humans — fictional characters or non-humans may have award claims. If you need award years use p:P166 / ps:P166 / pq:P585 and OPTIONAL { ?stmt pq:P585 ?year } to retrieve qualifier years.
- Use wdt:P625 (coordinates) together with wdt:P131* and wdt:P17 checks to validate a place's modern country or to filter by geography. When country labels mismatch historically, inspect admin parents and coordinates to resolve whether the item refers to historical/colonial scope or current boundaries.
- Prefer wdt:Pxxx for normalized/direct values when qualifiers aren't needed. Use p:Pxxx / ps:Pxxx / pq:Pxxx to access qualifiers (e.g., pq:P585 for award year). Always fetch labels with rdfs:label + FILTER(LANG(?label) = "en").
- If search_autocomplete returns too many candidates or errors, retry with constraints (e.g., SELECT * WHERE { ?search wdt:P31 wd:Q5 }) or narrower query text. If still failing, fallback to search_entity and verify wdt:P31 for type checks.
- For award-year queries use p:P166 / ps:P166 / pq:P585 to access award statements and year qualifiers. Filter by xsd:dateTime ranges (e.g., >= "2020-01-01T00:00:00Z"^^xsd:dateTime && < "2021-01-01T00:00:00Z"^^xsd:dateTime) instead of YEAR() for robustness.
- Use search_property_of_entity to surface relevant properties for an entity (e.g., 'birth' -> P569/P19). list(...) can inspect triples but may return large results for notable items—prefer targeted wdt: patterns (wdt:Pxxx) or p:/ps:/pq: patterns when you need qualifiers.

SPARQL prefixes for use in function calls:
- bd: <http://www.bigdata.com/rdf#
- cc: <http://creativecommons.org/ns#
- data: <https://www.wikidata.org/wiki/Special:EntityData/
- dc: <http://purl.org/dc/elements/1.1/
- dct: <http://purl.org/dc/terms/
- foaf: <http://xmlns.com/foaf/0.1/
- geo: <http://www.opengis.net/ont/geosparql#
- geof: <http://www.opengis.net/def/function/geosparql/
- gn: <http://www.geonames.org/ontology#
- hint: <http://www.bigdata.com/queryHints#
- 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/
- qb: <http://purl.org/linked-data/cube#
- 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/
- void: <http://rdfs.org/ns/void#
- 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#

Additional rules to follow:
- 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 ask the user for clarifications without first attempting to complete the task. If the task input is incomplete or ambiguous, try to make reasonable assumptions and document them.
- 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] How many musical ensembles were formed each year, grouped by the year of their inception and sorted by year?

[Assistant]
I'll first search Wikidata for the item corresponding to "musical ensemble" to get the correct Q-ID, and for the relevant property for inception/founding year (likely "inception" P571). I'll verify the property with a property search if needed. Then I'll build a SPARQL query that finds items that are instances of "musical ensemble" (or subclasses) with an inception date, extract the year, group by year, count, and sort by year. I'll run intermediate queries to confirm the class and property IDs. Now I'll search for the "musical ensemble" item.

Question: musical ensemble

Top 10 entity alternatives:
1. musical ensemble (wd:Q2088357), also known as ensemble, music ensemble: group of people who perform instrumental and/or vocal music, with the ensemble typically known by a distinct name / group of people who perform instrumental and/or vocal music, with the ensemble typically known by a distinct name / group of people who perform instrumental and/or vocal music, with the ensemble typically known by a distinct name / is subclass of performing arts group / is subclass of music organization / is subclass of music organisation
2. vocal-musical ensemble (wd:Q29881657, matched via musical ensemble), also known as musical ensemble: musical ensemble in which both instrumentalists and singers perform / is instance of type of musical group / is subclass of musical group
3. Kantele (musical ensemble) (wd:Q4212623), also known as Kantele: is instance of musical ensemble
4. instrumental ensemble (wd:Q11072804, matched via instrumental musical ensemble), also known as instrumental musical ensemble: musical ensemble consisting solely of instruments / is instance of type of musical group / is subclass of musical ensemble
5. fictional musical ensemble (wd:Q6619719), also known as fictional band, fictional ensemble, fictional group, fictional musical group, fictional music band, etc.: is subclass of group of fictional characters / musical ensemble that exists only in fiction / is subclass of fictional organization / is subclass of fictional organisation
6. Musical Ensemble Erft e.V. (wd:Q122855895): amateur theater in North Rhine-Westphalia (Germany) / is instance of theatre troupe
7. composition for concertina ensemble (wd:Q108040793, matched via concertina ensemble (musical work)), also known as concertina ensemble, concertina ensemble (musical work): is instance of type of musical work/composition / is subclass of composed musical work / type of musical composition
8. Fondateur d'un ensemble musical (wd:Q105103965): is instance of human
9. member of this band, musical group (wd:Q65966973, matched via member of this musical ensemble), also known as band members by band, member of this band, member of this musical ensemble, member of this musical group: is instance of Wikidata metaclass / is subclass of group member / is instance of metaclass / Wikidata metaclass
10. music (wd:Q638, matched via musical art), also known as creating music, musical art: art/activity of creating art using sound / is instance of academic discipline / is instance of field of study / is subclass of Entertainment / is subclass of entertainment / is instance of type of arts / is instance of specialism / is instance of discipline / is instance of specialty / is subclass of The arts / is subclass of the arts / is subclass of arts

[Assistant]
Now I'll search for the property "inception" to confirm its property id (likely P571).

Question: inception

Top 10 property alternatives:
1. inception (wd:P571 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn), also known as broke ground, built, commenced on date, commencement date, completed, etc.: time when an entity begins to exist; for date of official opening use P1619 / time when an entity begins to exist; for date of official opening use P1619 / date or point in time when the organisation / object was founded / created / is subproperty of start time
2. production company (wd:P272 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn, matched via movie studio), also known as ballet company, broadcasting company, film studio, motion picture studio, movie studio, etc.: company that produced this film, audio or performing arts work / company that produced this film, audio or performing arts work
3. of (wd:P642 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn, matched via in), 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
4. location (wd:P276 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn, matched via in), also known as based in, city, from, held by, in, etc.: location of the object, structure or event. In the case of an ... use P706. Use P7153 for locations associated with the object / location of the item, physical object or event is within. In ... use P131. In case of a distinct terrain feature use P706. / location of the item, physical object or event is within. In ... use P131. In case of a distinct terrain feature use P706.
5. part of (wd:P361 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn, matched via in), also known as assembly of, branch of, chain, collateral branch of, component of, etc.: object of which the subject is a part (if this subject is ... "has part" (P527, see also "has parts of the class" (P2670)) / object of which the subject is a part (if this subject is ... "has part" (P527, see also "has parts of the class" (P2670)) / object of which the subject is a part (if this subject is ... "has part" (P527, see also "has parts of the class" (P2670)) / object of which the subject is a part (if this subject is ... "has part" (P527, see also "has parts of the class" (P2670))
6. located in the administrative territorial entity (wd:P131 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn, matched via in), also known as administrative territorial entity, administrative territory, city, happens in, in, etc.: the item is located on the territory of the following ... the item falls only partially into the administrative entity. / the item is located on the territory of the following ... the item falls only partially into the administrative entity. / the item is located on the territory of the following administrative entity / the item is located on the territory of the following administrative entity / is subproperty of location / is subproperty of part of
7. last entry (wd:P10818 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn, matched via last entrance), also known as last admission, last entrance, P10818: time after which an establishment or attraction no longer admits entry, qualifier for P3025 (for closing time, use P8627)
8. International Nuclear Event Scale (wd:P2127 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn, matched via INES), also known as INES, P2127: international scale for rating nuclear events and accidents
9. first flight (wd:P606 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn, matched via first launch), also known as 1st flight, date of the first flight, FF, first launch, maiden flight, etc.: date or point in time on which aircraft, rocket, or airline first flew / is subproperty of significant event
10. derivative work (wd:P4969 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn, matched via incarnation), also known as adaptation, adapted as, cover, derived work, has adaptation, etc.: work created from major part of this artwork; work created from major part of this software / new work of art (film, book, software, etc.) derived from major part of this work

[Assistant]
I'll run a SPARQL query that counts distinct items that are instances (or instances of subclasses) of "musical ensemble" (wd:Q2088357) by extracting the year from their inception (P571). I will extract the year robustly by taking the first 4 characters of the inception literal and casting to integer, then group and sort by year. Now I'll execute that query.

execute

PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
SELECT ?year (COUNT(DISTINCT ?ensemble) AS ?count) WHERE {
  ?ensemble wdt:P31/wdt:P279* wd:Q2088357 .
  ?ensemble wdt:P571 ?inception .
  BIND(xsd:integer(SUBSTR(STR(?inception),1,4)) AS ?year)
}
GROUP BY ?year
ORDER BY ?year

[Assistant]
I'll run a refined query that only uses inception values whose string form starts with four digits (to avoid malformed years), converts those four digits to integer year, and limits results to a sensible range (1000–2100). This reduces spurious rows like '19' or '8068'. Then I'll execute it.

PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
SELECT ?year (COUNT(DISTINCT ?ensemble) AS ?count) WHERE {
  ?ensemble wdt:P31/wdt:P279* wd:Q2088357 .
  ?ensemble wdt:P571 ?inception .
  BIND(STR(?inception) AS ?inceptionStr)
  FILTER(REGEX(?inceptionStr, "^\\d{4}"))
  BIND(xsd:integer(SUBSTR(?inceptionStr,1,4)) AS ?year)
  FILTER(?year >= 1000 && ?year <= 2100)
}
GROUP BY ?year
ORDER BY ?year

SPARQL execution failed:
Invalid SPARQL query: Escaping the character d is not allowed in QLever's regex filters. (Regex was ^\d{4}) Please note that there are two levels of escaping in place here: One for SPARQL and one for the regex engine

[Assistant]
The endpoint rejected \d in the regex; I'll use [0-9]{4} instead and re-run.

PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
SELECT ?year (COUNT(DISTINCT ?ensemble) AS ?count) WHERE {
  ?ensemble wdt:P31/wdt:P279* wd:Q2088357 .
  ?ensemble wdt:P571 ?inception .
  BIND(STR(?inception) AS ?inceptionStr)
  FILTER(REGEX(?inceptionStr, "^[0-9]{4}"))
  BIND(xsd:integer(SUBSTR(?inceptionStr,1,4)) AS ?year)
  FILTER(?year >= 1000 && ?year <= 2100)
}
GROUP BY ?year
ORDER BY ?year

[Assistant]
answer

PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
SELECT ?year (COUNT(DISTINCT ?ensemble) AS ?count) WHERE {
  ?ensemble wdt:P31/wdt:P279* wd:Q2088357 .
  ?ensemble wdt:P571 ?inception .
  BIND(STR(?inception) AS ?inceptionStr)
  FILTER(REGEX(?inceptionStr, "^[0-9]{4}"))
  BIND(xsd:integer(SUBSTR(?inceptionStr,1,4)) AS ?year)
  FILTER(?year >= 1000 && ?year <= 2100)
}
GROUP BY ?year
ORDER BY ?year

Answer:
I executed a query that counts distinct musical ensembles (items instance-of or instance-of-subclass of wd:Q2088357) grouped by the year of their inception (P571). The query filters inception values to those whose string form begins with four digits, converts that to an integer year, restricts the year to the range 1000–2100, groups by year, and orders by year.

Results summary from the query run: 294 rows (distinct years) were returned. A few sample rows: 1127 → 1, 1200 → 1, 1213 → 1, ... recent years: 2021 → 140, 2022 → 134, 2023 → 81, 2024 → 41, 2025 → 9.

If you want the complete year-by-year table, or output in CSV/JSON, tell me which format and I will provide it.


PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
SELECT DISTINCT ?person ?personLabel ?death ?fsid ?father ?fatherLabel WHERE {
  ?person wdt:P31 wd:Q5 ; wdt:P27 wd:Q16 ; wdt:P2889 ?fsid ; wdt:P570 ?death ; wdt:P22 ?father .
  ?father wdt:P31 wd:Q5 .
  FILTER NOT EXISTS {
    ?father wdt:P2889 ?fatherFS
  }
  ?person rdfs:label ?personLabel .
  FILTER ( LANG( ?personLabel ) = "en" ) OPTIONAL {
    ?father rdfs:label ?fatherLabel .
    FILTER ( LANG( ?fatherLabel ) = "en" )
  }
}
ORDER BY ?personLabel

Using entities:
- Canada (wd:Q16), also known as CA, CAN, Dominion of Canada, ISO 3166-1:CA: is instance of sovereign state / is instance of country / country in North America / country in North America
- human (wd:Q5), also known as human being, humans, individual Homo sapiens, individual human, modern humans, etc.: is instance of class of organisms known by one particular common name / is instance of organisms known by a particular common name / is subclass of mammal / is subclass of natural person / is subclass of omnivore / is subclass of person / is subclass of individual animal / any member of Homo sapiens, unique extant species of the genus Homo / common name of Homo sapiens, unique extant species of the genus Homo / common name of Homo sapiens, unique extant species of the genus Homo / common name of Homo sapiens, unique extant species of the genus Homo, from embryo to adult

Using properties:
- father (wd:P22 as wdt), also known as child of, dad, daddy, daughter of, has father, etc.: is subproperty of parent / male parent of the subject. For stepfather, use "stepparent' (P3448) / male parent of the subject. For stepfather, use "stepparent" (P3448) / male parent of the subject. For stepfather, use "stepparent" (P3448)
- country of citizenship (wd:P27 as wdt), also known as citizen of, citizenship, country, (legal) nationality, nation, etc.: is subproperty of country / the object is a country that recognizes the subject as its citizen / the object is a country that recognizes the subject as its citizen
- FamilySearch person ID (wd:P2889 as wdt), also known as FamilySearch Family Tree ID, FamilySearch ID, Family Search person ID, P2889: ID of a person on FamilySearch
- instance of (wd:P31 as wdt), also known as example of, has type, is a, is an, is of type, etc.: that class of which this subject is a particular example and ... a subclass of mountain (and an instance of volcanic landform) / type to which this subject corresponds/belongs. Different ... and the volcano is a type (instance) of volcanic landform
- date of death (wd:P570 as wdt), also known as date of the end, dead, death, death date, deathdate, etc.: is subproperty of dissolved, abolished or demolished / is subproperty of dissolved, abolished or demolished date / is subproperty of end time / date on which the subject died / date on which the subject died / date on which the subject died

Got 30 rows and 6 columns, showing the first 5 and last 5 rows below:
| person                                   | personLabel                           | death                               | fsid     | father                                         | fatherLabel                              |
| ---------------------------------------- | ------------------------------------- | ----------------------------------- | -------- | ---------------------------------------------- | ---------------------------------------- |
| Adolphe-Philippe Caron (wd:Q365644)      | Adolphe-Philippe Caron (lang:en)      | 1908-04-20T00:00:00Z (xsd:dateTime) | 9MLK-G5S | René-Édouard Caron (wd:Q1524910)               | René-Édouard Caron (lang:en)             |
| Alexa McDonough (wd:Q2604970)            | Alexa McDonough (lang:en)             | 2022-01-15T00:00:00Z (xsd:dateTime) | GDGD-D7Q | Lloyd Shaw (wd:Q6662738)                       | Lloyd Shaw (lang:en)                     |
| Amos Edwin Botsford (wd:Q587924)         | Amos Edwin Botsford (lang:en)         | 1894-03-19T00:00:00Z (xsd:dateTime) | MX6R-BF2 | William Botsford (wd:Q8005737)                 | William Botsford (lang:en)               |
| Bill John Birch (wd:Q76108951)           | Bill John Birch (lang:en)             | 1947-02-17T00:00:00Z (xsd:dateTime) | K2F2-4T6 | Robert Featherstonehaugh Birch (wd:Q76109040)  | Robert Featherstonehaugh Birch (lang:en) |
| Charles Henry Keefer (wd:Q5079699)       | Charles Henry Keefer (lang:en)        | 1932-04-12T00:00:00Z (xsd:dateTime) | 2WPF-S1H | Thomas Keefer (wd:Q7791448)                    | Thomas Keefer (lang:en)                  |
| ...                                      | ...                                   | ...                                 | ...      | ...                                            | ...                                      |
| Rob Ford (wd:Q169303)                    | Rob Ford (lang:en)                    | 2016-03-22T00:00:00Z (xsd:dateTime) | L18V-HZW | Doug Ford Sr. (wd:Q5300479)                    | Doug Ford Sr. (lang:en)                  |
| Suzanne Cloutier (wd:Q456476)            | Suzanne Cloutier (lang:en)            | 2003-12-02T00:00:00Z (xsd:dateTime) | LCZK-134 | Edmond Cloutier (wd:Q97068618)                 | Edmond Cloutier (lang:en)                |
| Tommy Douglas (wd:Q359653)               | Tommy Douglas (lang:en)               | 1986-02-24T00:00:00Z (xsd:dateTime) | 9JW9-QTR | Thomas Douglas (wd:Q106518216)                 | Thomas Douglas (lang:en)                 |
| Wilfrid Laurier (wd:Q128664)             | Wilfrid Laurier (lang:en)             | 1919-02-17T00:00:00Z (xsd:dateTime) | K6HH-VJF | unknown Laurier (wd:Q76336310)                 | unknown Laurier (lang:en)                |
| William Cornelius Van Horne (wd:Q472946) | William Cornelius Van Horne (lang:en) | 1915-09-11T00:00:00Z (xsd:dateTime) | LKDX-LYJ | Cornelius Covenhoven Van Horne (wd:Q131401528) | Cornelius Covenhoven Van Horne (lang:en) |

Answer:
Query run and results summary:

I ran the above SPARQL query on Wikidata. It returned 30 distinct deceased Canadian humans who have a FamilySearch person ID and whose father (recorded as a Wikidata human item) does not have a FamilySearch person ID. For each person the query returns the person IRI, English label, date of death, the FamilySearch person ID string, and the father's IRI and (where available) English label.

Sample / representative rows from the result set (person — date of death — FamilySearch person ID — father):
- Adolphe-Philippe Caron (wd:Q365644) — 1908-04-20 — 9MLK-G5S — René-Édouard Caron (wd:Q1524910)
- Alexa McDonough (wd:Q2604970) — 2022-01-15 — GDGD-D7Q — Lloyd Shaw (wd:Q6662738)
- Amos Edwin Botsford (wd:Q587924) — 1894-03-19 — MX6R-BF2 — William Botsford (wd:Q8005737)
- Bill John Birch (wd:Q76108951) — 1947-02-17 — K2F2-4T6 — Robert Featherstonehaugh Birch (wd:Q76109040)
- Charles Henry Keefer (wd:Q5079699) — 1932-04-12 — 2WPF-S1H — Thomas Keefer (wd:Q7791448)
- Tommy Douglas (wd:Q359653) — 1986-02-24 — 9JW9-QTR — Thomas Douglas (wd:Q106518216)
- Wilfrid Laurier (wd:Q128664) — 1919-02-17 — K6HH-VJF — unknown Laurier (wd:Q76336310)
- Rob Ford (wd:Q169303) — 2016-03-22 — L18V-HZW — Doug Ford Sr. (wd:Q5300479)
- William Cornelius Van Horne (wd:Q472946) — 1915-09-11 — LKDX-LYJ — Cornelius Covenhoven Van Horne (wd:Q131401528)
- Suzanne Cloutier (wd:Q456476) — 2003-12-02 — LCZK-134 — Edmond Cloutier (wd:Q97068618)

(There are 30 total matching rows.)

If you want the full list expanded as a table here, I can paste all 30 rows (person IRI, label, date of death, FamilySearch ID, father IRI and label). Alternatively, you can run the included SPARQL query directly against Wikidata to retrieve the complete result set in your preferred format (CSV, JSON, etc.).

Notes on methodology and caveats:
- "Canadian" was interpreted as having country of citizenship = Canada (wd:Q16). If you want instead people born in Canada, or who are Canadian by residence, let me know and I will adjust the query.
- I required that the person be deceased by checking for a date of death (wdt:P570). Some items can have imprecise or missing death dates; such individuals won't appear.
- Father was required to be a Wikidata human item (wdt:P22 pointing to an item with wdt:P31 wd:Q5); if the father is recorded as a plain string or missing as an item, those cases are excluded. If you prefer to include non-item fathers, I can relax that constraint.
- FamilySearch person ID is property P2889 (used as wdt:P2889). The query checks the person has a P2889 value and that the father does not.

If you want the complete 30-row table pasted here, or exported as CSV/JSON, tell me which format you prefer and I will provide it.

Query run and results summary:

I ran the above SPARQL query on Wikidata. It returned 30 distinct deceased Canadian humans who have a FamilySearch person ID and whose father (recorded as a Wikidata human item) does not have a FamilySearch person ID. For each person the query returns the person IRI, English label, date of death, the FamilySearch person ID string, and the father's IRI and (where available) English label.

Sample / representative rows from the result set (person — date of death — FamilySearch person ID — father):
- Adolphe-Philippe Caron (wd:Q365644) — 1908-04-20 — 9MLK-G5S — René-Édouard Caron (wd:Q1524910)
- Alexa McDonough (wd:Q2604970) — 2022-01-15 — GDGD-D7Q — Lloyd Shaw (wd:Q6662738)
- Amos Edwin Botsford (wd:Q587924) — 1894-03-19 — MX6R-BF2 — William Botsford (wd:Q8005737)
- Bill John Birch (wd:Q76108951) — 1947-02-17 — K2F2-4T6 — Robert Featherstonehaugh Birch (wd:Q76109040)
- Charles Henry Keefer (wd:Q5079699) — 1932-04-12 — 2WPF-S1H — Thomas Keefer (wd:Q7791448)
- Tommy Douglas (wd:Q359653) — 1986-02-24 — 9JW9-QTR — Thomas Douglas (wd:Q106518216)
- Wilfrid Laurier (wd:Q128664) — 1919-02-17 — K6HH-VJF — unknown Laurier (wd:Q76336310)
- Rob Ford (wd:Q169303) — 2016-03-22 — L18V-HZW — Doug Ford Sr. (wd:Q5300479)
- William Cornelius Van Horne (wd:Q472946) — 1915-09-11 — LKDX-LYJ — Cornelius Covenhoven Van Horne (wd:Q131401528)
- Suzanne Cloutier (wd:Q456476) — 2003-12-02 — LCZK-134 — Edmond Cloutier (wd:Q97068618)

(There are 30 total matching rows.)

If you want the full list expanded as a table here, I can paste all 30 rows (person IRI, label, date of death, FamilySearch ID, father IRI and label). Alternatively, you can run the included SPARQL query directly against Wikidata to retrieve the complete result set in your preferred format (CSV, JSON, etc.).

Notes on methodology and caveats:
- "Canadian" was interpreted as having country of citizenship = Canada (wd:Q16). If you want instead people born in Canada, or who are Canadian by residence, let me know and I will adjust the query.
- I required that the person be deceased by checking for a date of death (wdt:P570). Some items can have imprecise or missing death dates; such individuals won't appear.
- Father was required to be a Wikidata human item (wdt:P22 pointing to an item with wdt:P31 wd:Q5); if the father is recorded as a plain string or missing as an item, those cases are excluded. If you prefer to include non-item fathers, I can relax that constraint.
- FamilySearch person ID is property P2889 (used as wdt:P2889). The query checks the person has a P2889 value and that the father does not.

If you want the complete 30-row table pasted here, or exported as CSV/JSON, tell me which format you prefer and I will provide it.

SPARQL query over wikidata:
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
SELECT DISTINCT ?person ?personLabel ?death ?fsid ?father ?fatherLabel WHERE {
  ?person wdt:P31 wd:Q5 ; wdt:P27 wd:Q16 ; wdt:P2889 ?fsid ; wdt:P570 ?death ; wdt:P22 ?father .
  ?father wdt:P31 wd:Q5 .
  FILTER NOT EXISTS {
    ?father wdt:P2889 ?fatherFS
  }
  ?person rdfs:label ?personLabel .
  FILTER ( LANG( ?personLabel ) = "en" ) OPTIONAL {
    ?father rdfs:label ?fatherLabel .
    FILTER ( LANG( ?fatherLabel ) = "en" )
  }
}
ORDER BY ?personLabel

Using entities:
- Canada (wd:Q16), also known as CA, CAN, Dominion of Canada, ISO 3166-1:CA: is instance of sovereign state / is instance of country / country in North America / country in North America
- human (wd:Q5), also known as human being, humans, individual Homo sapiens, individual human, modern humans, etc.: is instance of class of organisms known by one particular common name / is instance of organisms known by a particular common name / is subclass of mammal / is subclass of natural person / is subclass of omnivore / is subclass of person / is subclass of individual animal / any member of Homo sapiens, unique extant species of the genus Homo / common name of Homo sapiens, unique extant species of the genus Homo / common name of Homo sapiens, unique extant species of the genus Homo / common name of Homo sapiens, unique extant species of the genus Homo, from embryo to adult

Using properties:
- father (wd:P22 as wdt), also known as child of, dad, daddy, daughter of, has father, etc.: is subproperty of parent / male parent of the subject. For stepfather, use "stepparent' (P3448) / male parent of the subject. For stepfather, use "stepparent" (P3448) / male parent of the subject. For stepfather, use "stepparent" (P3448)
- country of citizenship (wd:P27 as wdt), also known as citizen of, citizenship, country, (legal) nationality, nation, etc.: is subproperty of country / the object is a country that recognizes the subject as its citizen / the object is a country that recognizes the subject as its citizen
- FamilySearch person ID (wd:P2889 as wdt), also known as FamilySearch Family Tree ID, FamilySearch ID, Family Search person ID, P2889: ID of a person on FamilySearch
- instance of (wd:P31 as wdt), also known as example of, has type, is a, is an, is of type, etc.: that class of which this subject is a particular example and ... a subclass of mountain (and an instance of volcanic landform) / type to which this subject corresponds/belongs. Different ... and the volcano is a type (instance) of volcanic landform
- date of death (wd:P570 as wdt), also known as date of the end, dead, death, death date, deathdate, etc.: is subproperty of dissolved, abolished or demolished / is subproperty of dissolved, abolished or demolished date / is subproperty of end time / date on which the subject died / date on which the subject died / date on which the subject died

Execution result:
Got 30 rows and 6 columns, showing the first 5 and last 5 rows below:
| person                                   | personLabel                           | death                               | fsid     | father                                         | fatherLabel                              |
| ---------------------------------------- | ------------------------------------- | ----------------------------------- | -------- | ---------------------------------------------- | ---------------------------------------- |
| Adolphe-Philippe Caron (wd:Q365644)      | Adolphe-Philippe Caron (lang:en)      | 1908-04-20T00:00:00Z (xsd:dateTime) | 9MLK-G5S | René-Édouard Caron (wd:Q1524910)               | René-Édouard Caron (lang:en)             |
| Alexa McDonough (wd:Q2604970)            | Alexa McDonough (lang:en)             | 2022-01-15T00:00:00Z (xsd:dateTime) | GDGD-D7Q | Lloyd Shaw (wd:Q6662738)                       | Lloyd Shaw (lang:en)                     |
| Amos Edwin Botsford (wd:Q587924)         | Amos Edwin Botsford (lang:en)         | 1894-03-19T00:00:00Z (xsd:dateTime) | MX6R-BF2 | William Botsford (wd:Q8005737)                 | William Botsford (lang:en)               |
| Bill John Birch (wd:Q76108951)           | Bill John Birch (lang:en)             | 1947-02-17T00:00:00Z (xsd:dateTime) | K2F2-4T6 | Robert Featherstonehaugh Birch (wd:Q76109040)  | Robert Featherstonehaugh Birch (lang:en) |
| Charles Henry Keefer (wd:Q5079699)       | Charles Henry Keefer (lang:en)        | 1932-04-12T00:00:00Z (xsd:dateTime) | 2WPF-S1H | Thomas Keefer (wd:Q7791448)                    | Thomas Keefer (lang:en)                  |
| ...                                      | ...                                   | ...                                 | ...      | ...                                            | ...                                      |
| Rob Ford (wd:Q169303)                    | Rob Ford (lang:en)                    | 2016-03-22T00:00:00Z (xsd:dateTime) | L18V-HZW | Doug Ford Sr. (wd:Q5300479)                    | Doug Ford Sr. (lang:en)                  |
| Suzanne Cloutier (wd:Q456476)            | Suzanne Cloutier (lang:en)            | 2003-12-02T00:00:00Z (xsd:dateTime) | LCZK-134 | Edmond Cloutier (wd:Q97068618)                 | Edmond Cloutier (lang:en)                |
| Tommy Douglas (wd:Q359653)               | Tommy Douglas (lang:en)               | 1986-02-24T00:00:00Z (xsd:dateTime) | 9JW9-QTR | Thomas Douglas (wd:Q106518216)                 | Thomas Douglas (lang:en)                 |
| Wilfrid Laurier (wd:Q128664)             | Wilfrid Laurier (lang:en)             | 1919-02-17T00:00:00Z (xsd:dateTime) | K6HH-VJF | unknown Laurier (wd:Q76336310)                 | unknown Laurier (lang:en)                |
| William Cornelius Van Horne (wd:Q472946) | William Cornelius Van Horne (lang:en) | 1915-09-11T00:00:00Z (xsd:dateTime) | LKDX-LYJ | Cornelius Covenhoven Van Horne (wd:Q131401528) | Cornelius Covenhoven Van Horne (lang:en) |

[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.

Available knowledge graphs:
- wikidata at http://localhost:7001 with prefix index for entities and similarity index for properties, and notes:
  - P106 = occupation. Use wdt:P106 to get occupations and fetch English labels with rdfs:label + FILTER(LANG(?label)="en"). When returning human occupations confirm the subject is human (wdt:P31 wd:Q5) to avoid non-human items.
  - Population (P1082) and tabular (P4179): use wdt:P1082 for quick/direct values; for time-series/point-in-time use p:P1082 + ps:P1082 + pq:P585 and ORDER BY pq:P585 DESC. Inspect statement qualifiers (e.g., 'applies to part') and prov:wasDerivedFrom references (pr:P854 etc.) to detect city-proper vs metro/prefecture scopes before using values.
  - Common person properties: P31 (instance of human Q5), P106 (occupation), P569 (date of birth), P19 (place of birth), P27 (country of citizenship), P21 (sex/gender), P166 (award received). Use wdt: for direct values when possible.
  - P17 (country) can be incomplete/misleading for places (historical/overseas tags). To get modern cities in a country combine: instance-of city (P31=Q515) + wdt:P17 OR use wdt:P131* to find an admin parent whose wdt:P17 = the country. Also cross-check coordinates (P625) or admin hierarchy to spot outliers.
  - When filtering by date of birth (P569) use xsd:dateTime comparisons (e.g. >= "1900-01-01T00:00:00Z"^^xsd:dateTime). Be aware many items have year-only or imprecise dates and coverage is biased toward notable/public figures (sportspeople, politicians, artists).
  - To retrieve qualifiers (e.g., award year) use the statement/qualifier pattern: p:Pxxx / ps:Pxxx / pq:P585. Use wdt:Pxxx for normalized/direct values when you don't need qualifiers. Example: p:P166 + pq:P585 gives award year.
  - To get a person's occupations: use wdt:P106 for direct/normalized values and rdfs:label for human-readable names (FILTER(LANG(...))). Example: wd:Q... wdt:P106 ?occ . ?occ rdfs:label ?occLabel . FILTER(LANG(?occLabel)="en").
  - P166 = award received. Use wdt:P166 for normalized/direct values when you only need award items. To get award years or qualifiers use p:P166 / ps:P166 / pq:P585. Many statements lack pq:P585 — use OPTIONAL { ?stmt pq:P585 ?date } and ORDER BY DESC(?date). When listing award winners, filter ?person wdt:P31 wd:Q5 to ensure humans.
  - Population time-series pattern: wd:Q... p:P1082 ?stmt . ?stmt ps:P1082 ?pop . OPTIONAL { ?stmt pq:P585 ?date } . ORDER BY DESC(?date). pq:P585 is the point-in-time qualifier. IMPORTANT: time-series may mix scopes (city proper vs metro) — e.g., Tokyo has a 2016 entry ~38,140,000 likely metro vs smaller city figures. Inspect qualifiers/references for scope before use.
  - Use wdt:P131* to traverse the admin hierarchy and compare wdt:P17 on the place vs an admin parent to detect historical/colonial country assignments. When mismatches appear, inspect the admin parent's instance-of (P31), labels, qualifiers and references to interpret the historical scope.
  - wdt:P106 often yields multiple occupations for a person. Use GROUP_CONCAT(DISTINCT ?occLabel; separator=", ") or return multiple rows. Always fetch labels with rdfs:label + FILTER(LANG(?label)="en") to get readable occupation names.
  - When a search_entity returns multiple hits (person vs sculpture vs memorial), confirm you selected the human/statements by checking wdt:P31 (instance of) and relevant wdt: properties (e.g., wdt:P106). This avoids using a non-human QID by mistake.
  - search_autocomplete can be constrained with a SPARQL pattern containing ?search (e.g., SELECT * WHERE { ?search wdt:P31 wd:Q5 }). Use constraints to focus results (e.g., humans) and avoid ambiguous fallbacks; if it returns no results, fallback to search_entity and verify wdt:P31.
  - Use search_property_of_entity to find relevant properties for an entity (e.g., 'award' -> P166) and search_object_of_property to discover candidate objects (e.g., 'physicist' for P106). This reduces guessing P/Q ids and surfaces qualifiers.
  - Inspect statement references and qualifiers: use prov:wasDerivedFrom on p: statements to find sources, and check qualifiers (e.g., 'applies to part' or other scope qualifiers) to disambiguate city vs metro vs admin area. Reference labels can be empty; inspect reference node properties for URLs or publication dates.

Index types used for entities and properties:
- Prefix index: Retrieves items by overlap between query keywords and item words. The query keywords can match item words exactly or as prefixes.
- Similarity index: Retrieves items by cosine similarity between their embeddings and the query embedding.

General notes across knowledge graphs:
- Use rdfs:label + FILTER(LANG(?label)="en") for labels; avoid SERVICE wikibase:label. Use wdt:Pxxx for normalized/direct values when qualifiers aren't needed. Use p:Pxxx / ps:Pxxx / pq:Pxxx to access statement qualifiers (e.g., award year via pq:P585). When dates matter, prefer xsd:dateTime and watch for year-only precision.
- Practical query patterns: use rdfs:label + FILTER(LANG(...)) for labels. Use wdt:Pxxx for direct/normalized values when qualifiers aren't needed. Use p:Pxxx / ps:Pxxx / pq:Pxxx to access qualifiers (dates via pq:P585). For dates use xsd:dateTime and expect year-only precision. For places: combine P17 with P131 or coordinate (P625) filters to avoid historical/overseas mismatches.
- Use OPTIONAL for pq: qualifiers (e.g., pq:P585), sort by qualifier (ORDER BY pq:P585 DESC) to prefer recent values. Use GROUP_CONCAT to combine multiple labels/values in one row. Watch for typed literals (xsd:dateTime, xsd:decimal) when filtering or sorting.
- Before querying, use search_entity to resolve human-friendly names to wd:Q identifiers and verify instance-of (e.g., check wdt:P31 = wd:Q5 for humans) to avoid ambiguous matches. Prefer the top match but programmatically confirm P31 before using its data.
- Use search_property to confirm property identifiers (e.g., "country" -> P17) before embedding them in queries. This prevents mistakes from assuming an ID and helps pick the best property if multiple choices exist.
- search_autocomplete can fall back to an unconstrained search or error when there are too many candidates. If this happens (e.g., "more than the maximum supported number of subject candidates"), retry with narrower constraints such as instance-of (wdt:P31), additional type filters, or short prefixes to reduce the candidate set; otherwise fallback to search_entity and verify wdt:P31.
- Use list(...) to inspect all triples on an entity for exploration, but expect large results for notable items. Prefer wdt: properties or targeted p:/ps:/pq: patterns in SPARQL when you need normalized values or qualifiers, respectively.
- Before embedding property or item IDs in SPARQL, use search_property, search_property_of_entity, and search_object_of_property to discover the appropriate P/PID or object QIDs. This reduces errors from guessing IDs and surfaces better property alternatives and qualifiers.
- search_constrained and search_autocomplete can return no results for constrained queries or when the index is large. If they fail, fallback to search_entity + verify P31 (or use search_property_of_entity). Constrain with instance-of (wdt:P31) or other properties in the SPARQL to improve matches.
- When selecting awards by year, prefer xsd:dateTime range filters (e.g., >= "2001-01-01T00:00:00Z"^^xsd:dateTime && < "2002-01-01T00:00:00Z"^^xsd:dateTime) instead of YEAR() for portability and precision.
- When selecting award winners via wdt:P166, filter ?person wdt:P31 wd:Q5 to ensure humans — fictional characters or non-humans may have award claims. If you need award years use p:P166 / ps:P166 / pq:P585 and OPTIONAL { ?stmt pq:P585 ?year } to retrieve qualifier years.
- Use wdt:P625 (coordinates) together with wdt:P131* and wdt:P17 checks to validate a place's modern country or to filter by geography. When country labels mismatch historically, inspect admin parents and coordinates to resolve whether the item refers to historical/colonial scope or current boundaries.
- Prefer wdt:Pxxx for normalized/direct values when qualifiers aren't needed. Use p:Pxxx / ps:Pxxx / pq:Pxxx to access qualifiers (e.g., pq:P585 for award year). Always fetch labels with rdfs:label + FILTER(LANG(?label) = "en").
- If search_autocomplete returns too many candidates or errors, retry with constraints (e.g., SELECT * WHERE { ?search wdt:P31 wd:Q5 }) or narrower query text. If still failing, fallback to search_entity and verify wdt:P31 for type checks.
- For award-year queries use p:P166 / ps:P166 / pq:P585 to access award statements and year qualifiers. Filter by xsd:dateTime ranges (e.g., >= "2020-01-01T00:00:00Z"^^xsd:dateTime && < "2021-01-01T00:00:00Z"^^xsd:dateTime) instead of YEAR() for robustness.
- Use search_property_of_entity to surface relevant properties for an entity (e.g., 'birth' -> P569/P19). list(...) can inspect triples but may return large results for notable items—prefer targeted wdt: patterns (wdt:Pxxx) or p:/ps:/pq: patterns when you need qualifiers.

SPARQL prefixes for use in function calls:
- bd: <http://www.bigdata.com/rdf#
- cc: <http://creativecommons.org/ns#
- data: <https://www.wikidata.org/wiki/Special:EntityData/
- dc: <http://purl.org/dc/elements/1.1/
- dct: <http://purl.org/dc/terms/
- foaf: <http://xmlns.com/foaf/0.1/
- geo: <http://www.opengis.net/ont/geosparql#
- geof: <http://www.opengis.net/def/function/geosparql/
- gn: <http://www.geonames.org/ontology#
- hint: <http://www.bigdata.com/queryHints#
- 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/
- qb: <http://purl.org/linked-data/cube#
- 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/
- void: <http://rdfs.org/ns/void#
- 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#

Additional rules to follow:
- 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 ask the user for clarifications without first attempting to complete the task. If the task input is incomplete or ambiguous, try to make reasonable assumptions and document them.
- 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] Which deceased Canadian individuals have a FamilySearch person ID and have a father who does not have a FamilySearch person ID? For each person, include their date of death, FamilySearch person ID, and their father.

[Assistant]
Step 1: I'll search Wikidata for the property corresponding to "FamilySearch person ID" to get its property identifier so I can use it in the SPARQL query. I'll use search_property for that.

Question: FamilySearch person ID

Top 10 property alternatives:
1. FamilySearch person ID (wd:P2889 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn), also known as FamilySearch Family Tree ID, FamilySearch ID, Family Search person ID, P2889: ID of a person on FamilySearch
2. genealogics.org person ID (wd:P1819 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn), also known as P1819: identifier for a person at genealogics.org. Format: "I" followed by 8 digits / identifier for a person at genealogics.org. Format: "I" followed by 8 digits / identifier for a person at genealogics.org. Format: "I" followed by 8 digits / identifier for a person at genealogics.org. Format: "I" followed by 8 digits
3. Mathematics Genealogy Project ID (wd:P549 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn, matched via MathGenealogy ID), also known as Genealogy of Mathematics, Mathematics Genealogy Project identifier, Math Genealogy ID, MathGenealogy ID, MGP ID, etc.: identifier for mathematicians and computer scientists at the Mathematics Genealogy Project / identifier for mathematicians and computer scientists at the Mathematics Genealogy Project
4. Familypedia person ID (wd:P4193 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn), also known as Familypedia ID, P4193: identifier for a person on Familypedia, a genealogical database hosted at Wikia / identifier for a person on Familypedia, a genealogical database hosted at Wikia / identifier for a person on Familypedia, a genealogical database hosted at Wikia
5. Webpedigrees ID (wd:P3166 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn), also known as P3166: identifier for a horse on Webpedigrees database
6. GeneaStar person ID (wd:P8094 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn), also known as GeneaStar ID, P8094: identifier of a person in the GeneaStar genealogical database / identifier of a person in the GeneaStar genealogical database / identifier of a person in the GeneaStar genealogical database
7. MyHeritage Surname ID (wd:P5452 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn), also known as P5452: string identifying a surname (family name) at the MyHeritage genealogy website
8. AniSearch person ID (wd:P13053 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn), also known as P13053: ID for a person at AniSearch
9. Modern History Database person ID (wd:P11818 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn), also known as MHDB person ID, P11818: ID of a person from Modern History Database by Institute of Modern History, Academia Sinica
10. Geni.com profile ID (wd:P2600 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn, matched via Geni person ID), also known as Geni person ID, P2600: profile on the Geni.com genealogy website / profile on the Geni.com genealogy website

[Assistant]
I'll now search for the property for "father" to confirm its identifier (so I don't assume P22 without verification).

Question: father (property)

Top 10 property alternatives:
1. relative (wd:P1038 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn, matched via father-in-law), also known as ancestor, aunt, aunt-in-law, brother-in-law, co-brother-in-law, etc.: family member (qualify with "kinship to subject", P1039; for direct family member please use specific property) / family member (qualify with "type of kinship", P1039; for direct family member please use specific property) / is subproperty of significant person
2. child (wd:P40 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn, matched via father of), also known as children, daughter, daughters, descendants, father of, etc.: subject has object as child. Do not use for stepchildren—use "relative" (P1038), qualified with "type of kinship" (P1039) / subject has the object in their family as their offspring son or daughter (independently of their age) / subject has object as biological, foster, and/or adoptive child / is subproperty of significant person / is subproperty of relative
3. father (wd:P22 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn), also known as child of, dad, daddy, daughter of, has father, etc.: male parent of the subject. For stepfather, use "stepparent' (P3448) / male parent of the subject. For stepfather, use "stepparent" (P3448) / male parent of the subject. For stepfather, use "stepparent" (P3448) / is subproperty of parent
4. replaces (wd:P1365 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn, matched via forefather), also known as absorbed, absorbs, continues, continues from, deprecates, etc.: person, state or item replaced. Use "structure replaces" ... was not replaced or predecessor and successor are identical / person or item replaced. Use "structure replaces" (P1398) for ... was not replaced or predecessor and successor are identical / is subproperty of follows
5. stepparent (wd:P3448 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn, matched via stepfather), also known as stepchild of, step father, step-father, stepfather, step mother, etc.: subject has the object as their stepparent / subject has the object as their stepparent / subject has the object as their stepparent / is subproperty of relative
6. subproperty of (wd:P1647 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn, matched via parent property), also known as has parent property, instance of property, parent property, rdfs:subPropertyOf, subclass of property, etc.: all resources related by this property are also related by that property / is subproperty of related property / is subproperty of see also
7. parent (wd:P8810 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn), also known as guardian, parents, P8810: parent of the subject. Only use if neither father (P22) nor mother (P25) nor stepparent (P3448) is applicable. / is subproperty of relative
8. mother (wd:P25 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn, matched via parent), also known as child of, daughter of, has mother, is child of, is daughter of, etc.: female parent of the subject. For stepmother, use "stepparent" (P3448) / female parent of the subject. For stepmother, use "stepparent" (P3448) / female parent of the subject. For stepmother, use "stepparent" (P3448) / is subproperty of parent
9. owned by (wd:P127 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn, matched via owner), also known as belonged to, belongs to, is owned by, owner, owners, etc.: owner of the subject / owner of the subject / owner of the subject
10. parent organization (wd:P749 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn, matched via parent company), also known as chapter of, has organizational parent, holding, holding company, owned by (company or organisation), etc.: parent organization of an organization, opposite of subsidiaries (P355) / is subproperty of owned by / is subproperty of part of

[Assistant]
Next I'll confirm the property for "date of death" so I can use its identifier reliably.

Question: date of death

Top 10 property alternatives:
1. date of death (wd:P570 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn), also known as date of the end, dead, death, death date, deathdate, etc.: is subproperty of dissolved, abolished or demolished date / is subproperty of dissolved, abolished or demolished / date on which the subject died / date on which the subject died / date on which the subject died / is subproperty of end time
2. date of burial or cremation (wd:P4602 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn, matched via date of cremation), also known as burial date, cremation date, date of cremation, funeral date, P4602: date on which the person was buried or cremated soon after death / is subproperty of point in time
3. place of death (wd:P20 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn), also known as death location, death place, deathplace, died, died in, etc.: most specific known (e.g. city instead of country, or ... death location of a person, animal or fictional character / most specific known (e.g. city instead of country, or ... death location of a person, animal or fictional character / most specific known (e.g. city instead of country, or ... death location of a person, animal or fictional character / is subproperty of location
4. date of disappearance (wd:P746 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn), also known as date of missing, disappeared, last known alive before disappearance, last seen, missing since, etc.: date or point of time a missing person was seen or otherwise known to be alive for the last time / is subproperty of end time
5. discontinued date (wd:P2669 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn, matched via ceased date), also known as ceased date, date discontinued, date of discontinuation, date product was discontinued, discontinuation date, etc.: date that the availability of a product or service was ... retirement" (P730) for pieces or classes of equipment / date that the availability of a product was discontinued; see also "dissolved, abolished or demolished" (P576) / is subproperty of end time
6. dissolved, abolished or demolished date (wd:P576 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn, matched via ceased date), also known as abolished, abolishment date, ceased date, ceased on, ceased publication, etc.: point in time at which the subject (organisation, building) ...  "discontinued date" (P2669) for stopping a product / date or point in time on which the organisation was dissolved/disappeared or the building demolished / is subproperty of end time
7. date of birth (wd:P569 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn), also known as birth date, birthdate, birth year, birthyear, born, etc.: is subproperty of date of foundation or creation / date on which the subject was born / date on which the subject was born / date on which the subject was born / is subproperty of inception
8. cause of death (wd:P509 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn, matched via died of), also known as death cause, died of, die from, die of, method of murder, etc.: underlying or immediate cause of death.  Underlying cause ... category, e.g. natural causes, accident, homicide, suicide / underlying or immediate cause of death.  Underlying cause ... category, e.g. natural causes, accident, homicide, suicide / an item describing the cause of a person or specific organism's death. Samples: leukaemia, car crash / medical cause of a person or specific organism's death (not to be confused with P1196)
9. number of deaths (wd:P1120 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn, matched via deaths), also known as dead, death count, death number, deaths, death toll, etc.: total (cumulative) number of people who died since start as a direct result of an event or cause / number of ALL people who died as a direct result of an event or cause / number of ALL people who died as a direct result of an event or cause
10. date of resignation (wd:P9667 as pr/psn/wdtn/ps/prn/p/pq/pqv/wdt/prv/psv/pqn), also known as official date of resignation, official resignation date, resignation date, P9667: date of official resignation of the head of a government in ... to stay in place until the formation of a new executive / is subproperty of dissolved, abolished or demolished date / is subproperty of dissolved, abolished or demolished / is subproperty of significant event

[Assistant]
I'll execute a SPARQL SELECT query that:
- Finds humans (?person wdt:P31 wd:Q5) with country of citizenship Canada (wd:Q16),
- who have a FamilySearch ID (wdt:P2889) and a date of death (wdt:P570),
- have a father (wdt:P22 ?father),
- and the father does NOT have a FamilySearch ID (FILTER NOT EXISTS { ?father wdt:P2889 ?fatherFS }).
I'll request English labels for the person and father and return the death date and the FamilySearch ID.

Now I'll run the query to get actual results from Wikidata.

execute

PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

SELECT DISTINCT ?person ?personLabel ?death ?fsid ?father ?fatherLabel WHERE {
  ?person wdt:P31 wd:Q5;           # human
          wdt:P27 wd:Q16;          # country of citizenship: Canada
          wdt:P2889 ?fsid;         # has FamilySearch person ID
          wdt:P570 ?death;         # date of death (so deceased)
          wdt:P22 ?father .        # has father

  # ensure father is a human item (common case)
  ?father wdt:P31 wd:Q5 .

  # father does NOT have a FamilySearch person ID
  FILTER NOT EXISTS { ?father wdt:P2889 ?fatherFS }

  # English labels
  ?person rdfs:label ?personLabel . FILTER(LANG(?personLabel) = "en")
  OPTIONAL { ?father rdfs:label ?fatherLabel . FILTER(LANG(?fatherLabel) = "en") }
}
ORDER BY ?personLabel
LIMIT 1000

Got 30 rows and 6 columns, showing the first 5 and last 5 rows below:
| person                                   | personLabel                           | death                               | fsid     | father                                         | fatherLabel                              |
| ---------------------------------------- | ------------------------------------- | ----------------------------------- | -------- | ---------------------------------------------- | ---------------------------------------- |
| Adolphe-Philippe Caron (wd:Q365644)      | Adolphe-Philippe Caron (lang:en)      | 1908-04-20T00:00:00Z (xsd:dateTime) | 9MLK-G5S | René-Édouard Caron (wd:Q1524910)               | René-Édouard Caron (lang:en)             |
| Alexa McDonough (wd:Q2604970)            | Alexa McDonough (lang:en)             | 2022-01-15T00:00:00Z (xsd:dateTime) | GDGD-D7Q | Lloyd Shaw (wd:Q6662738)                       | Lloyd Shaw (lang:en)                     |
| Amos Edwin Botsford (wd:Q587924)         | Amos Edwin Botsford (lang:en)         | 1894-03-19T00:00:00Z (xsd:dateTime) | MX6R-BF2 | William Botsford (wd:Q8005737)                 | William Botsford (lang:en)               |
| Bill John Birch (wd:Q76108951)           | Bill John Birch (lang:en)             | 1947-02-17T00:00:00Z (xsd:dateTime) | K2F2-4T6 | Robert Featherstonehaugh Birch (wd:Q76109040)  | Robert Featherstonehaugh Birch (lang:en) |
| Charles Henry Keefer (wd:Q5079699)       | Charles Henry Keefer (lang:en)        | 1932-04-12T00:00:00Z (xsd:dateTime) | 2WPF-S1H | Thomas Keefer (wd:Q7791448)                    | Thomas Keefer (lang:en)                  |
| ...                                      | ...                                   | ...                                 | ...      | ...                                            | ...                                      |
| Rob Ford (wd:Q169303)                    | Rob Ford (lang:en)                    | 2016-03-22T00:00:00Z (xsd:dateTime) | L18V-HZW | Doug Ford Sr. (wd:Q5300479)                    | Doug Ford Sr. (lang:en)                  |
| Suzanne Cloutier (wd:Q456476)            | Suzanne Cloutier (lang:en)            | 2003-12-02T00:00:00Z (xsd:dateTime) | LCZK-134 | Edmond Cloutier (wd:Q97068618)                 | Edmond Cloutier (lang:en)                |
| Tommy Douglas (wd:Q359653)               | Tommy Douglas (lang:en)               | 1986-02-24T00:00:00Z (xsd:dateTime) | 9JW9-QTR | Thomas Douglas (wd:Q106518216)                 | Thomas Douglas (lang:en)                 |
| Wilfrid Laurier (wd:Q128664)             | Wilfrid Laurier (lang:en)             | 1919-02-17T00:00:00Z (xsd:dateTime) | K6HH-VJF | unknown Laurier (wd:Q76336310)                 | unknown Laurier (lang:en)                |
| William Cornelius Van Horne (wd:Q472946) | William Cornelius Van Horne (lang:en) | 1915-09-11T00:00:00Z (xsd:dateTime) | LKDX-LYJ | Cornelius Covenhoven Van Horne (wd:Q131401528) | Cornelius Covenhoven Van Horne (lang:en) |

[Assistant]
I'll re-run the same SPARQL query (no change) to retrieve the full result rows so I can list them explicitly in the answer. I will explain the outcome after the call.

PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

SELECT DISTINCT ?person ?personLabel ?death ?fsid ?father ?fatherLabel WHERE {
  ?person wdt:P31 wd:Q5;           # human
          wdt:P27 wd:Q16;          # country of citizenship: Canada
          wdt:P2889 ?fsid;         # has FamilySearch person ID
          wdt:P570 ?death;         # date of death (so deceased)
          wdt:P22 ?father .        # has father

  # ensure father is a human item (common case)
  ?father wdt:P31 wd:Q5 .

  # father does NOT have a FamilySearch person ID
  FILTER NOT EXISTS { ?father wdt:P2889 ?fatherFS }

  # English labels
  ?person rdfs:label ?personLabel . FILTER(LANG(?personLabel) = "en")
  OPTIONAL { ?father rdfs:label ?fatherLabel . FILTER(LANG(?fatherLabel) = "en") }
}
ORDER BY ?personLabel

Got 30 rows and 6 columns, showing the first 5 and last 5 rows below:
| person                                   | personLabel                           | death                               | fsid     | father                                         | fatherLabel                              |
| ---------------------------------------- | ------------------------------------- | ----------------------------------- | -------- | ---------------------------------------------- | ---------------------------------------- |
| Adolphe-Philippe Caron (wd:Q365644)      | Adolphe-Philippe Caron (lang:en)      | 1908-04-20T00:00:00Z (xsd:dateTime) | 9MLK-G5S | René-Édouard Caron (wd:Q1524910)               | René-Édouard Caron (lang:en)             |
| Alexa McDonough (wd:Q2604970)            | Alexa McDonough (lang:en)             | 2022-01-15T00:00:00Z (xsd:dateTime) | GDGD-D7Q | Lloyd Shaw (wd:Q6662738)                       | Lloyd Shaw (lang:en)                     |
| Amos Edwin Botsford (wd:Q587924)         | Amos Edwin Botsford (lang:en)         | 1894-03-19T00:00:00Z (xsd:dateTime) | MX6R-BF2 | William Botsford (wd:Q8005737)                 | William Botsford (lang:en)               |
| Bill John Birch (wd:Q76108951)           | Bill John Birch (lang:en)             | 1947-02-17T00:00:00Z (xsd:dateTime) | K2F2-4T6 | Robert Featherstonehaugh Birch (wd:Q76109040)  | Robert Featherstonehaugh Birch (lang:en) |
| Charles Henry Keefer (wd:Q5079699)       | Charles Henry Keefer (lang:en)        | 1932-04-12T00:00:00Z (xsd:dateTime) | 2WPF-S1H | Thomas Keefer (wd:Q7791448)                    | Thomas Keefer (lang:en)                  |
| ...                                      | ...                                   | ...                                 | ...      | ...                                            | ...                                      |
| Rob Ford (wd:Q169303)                    | Rob Ford (lang:en)                    | 2016-03-22T00:00:00Z (xsd:dateTime) | L18V-HZW | Doug Ford Sr. (wd:Q5300479)                    | Doug Ford Sr. (lang:en)                  |
| Suzanne Cloutier (wd:Q456476)            | Suzanne Cloutier (lang:en)            | 2003-12-02T00:00:00Z (xsd:dateTime) | LCZK-134 | Edmond Cloutier (wd:Q97068618)                 | Edmond Cloutier (lang:en)                |
| Tommy Douglas (wd:Q359653)               | Tommy Douglas (lang:en)               | 1986-02-24T00:00:00Z (xsd:dateTime) | 9JW9-QTR | Thomas Douglas (wd:Q106518216)                 | Thomas Douglas (lang:en)                 |
| Wilfrid Laurier (wd:Q128664)             | Wilfrid Laurier (lang:en)             | 1919-02-17T00:00:00Z (xsd:dateTime) | K6HH-VJF | unknown Laurier (wd:Q76336310)                 | unknown Laurier (lang:en)                |
| William Cornelius Van Horne (wd:Q472946) | William Cornelius Van Horne (lang:en) | 1915-09-11T00:00:00Z (xsd:dateTime) | LKDX-LYJ | Cornelius Covenhoven Van Horne (wd:Q131401528) | Cornelius Covenhoven Van Horne (lang:en) |

[Assistant]
I'll now finalize by returning the SPARQL query I used and summarizing the results (the query returned 30 matching persons). The final message includes the query and the observed findings.

answer

PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

SELECT DISTINCT ?person ?personLabel ?death ?fsid ?father ?fatherLabel WHERE {
  ?person wdt:P31 wd:Q5;           # human
          wdt:P27 wd:Q16;          # country of citizenship: Canada
          wdt:P2889 ?fsid;         # has FamilySearch person ID
          wdt:P570 ?death;         # date of death (so deceased)
          wdt:P22 ?father .        # has father

  # ensure father is a human item
  ?father wdt:P31 wd:Q5 .

  # father does NOT have a FamilySearch person ID
  FILTER NOT EXISTS { ?father wdt:P2889 ?fatherFS }

  # English labels
  ?person rdfs:label ?personLabel . FILTER(LANG(?personLabel) = "en")
  OPTIONAL { ?father rdfs:label ?fatherLabel . FILTER(LANG(?fatherLabel) = "en") }
}
ORDER BY ?personLabel

Answer:
Query run and results summary:

I ran the above SPARQL query on Wikidata. It returned 30 distinct deceased Canadian humans who have a FamilySearch person ID and whose father (recorded as a Wikidata human item) does not have a FamilySearch person ID. For each person the query returns the person IRI, English label, date of death, the FamilySearch person ID string, and the father's IRI and (where available) English label.

Sample / representative rows from the result set (person — date of death — FamilySearch person ID — father):
- Adolphe-Philippe Caron (wd:Q365644) — 1908-04-20 — 9MLK-G5S — René-Édouard Caron (wd:Q1524910)
- Alexa McDonough (wd:Q2604970) — 2022-01-15 — GDGD-D7Q — Lloyd Shaw (wd:Q6662738)
- Amos Edwin Botsford (wd:Q587924) — 1894-03-19 — MX6R-BF2 — William Botsford (wd:Q8005737)
- Bill John Birch (wd:Q76108951) — 1947-02-17 — K2F2-4T6 — Robert Featherstonehaugh Birch (wd:Q76109040)
- Charles Henry Keefer (wd:Q5079699) — 1932-04-12 — 2WPF-S1H — Thomas Keefer (wd:Q7791448)
- Tommy Douglas (wd:Q359653) — 1986-02-24 — 9JW9-QTR — Thomas Douglas (wd:Q106518216)
- Wilfrid Laurier (wd:Q128664) — 1919-02-17 — K6HH-VJF — unknown Laurier (wd:Q76336310)
- Rob Ford (wd:Q169303) — 2016-03-22 — L18V-HZW — Doug Ford Sr. (wd:Q5300479)
- William Cornelius Van Horne (wd:Q472946) — 1915-09-11 — LKDX-LYJ — Cornelius Covenhoven Van Horne (wd:Q131401528)
- Suzanne Cloutier (wd:Q456476) — 2003-12-02 — LCZK-134 — Edmond Cloutier (wd:Q97068618)

(There are 30 total matching rows.)

If you want the full list expanded as a table here, I can paste all 30 rows (person IRI, label, date of death, FamilySearch ID, father IRI and label). Alternatively, you can run the included SPARQL query directly against Wikidata to retrieve the complete result set in your preferred format (CSV, JSON, etc.).

Notes on methodology and caveats:
- "Canadian" was interpreted as having country of citizenship = Canada (wd:Q16). If you want instead people born in Canada, or who are Canadian by residence, let me know and I will adjust the query.
- I required that the person be deceased by checking for a date of death (wdt:P570). Some items can have imprecise or missing death dates; such individuals won't appear.
- Father was required to be a Wikidata human item (wdt:P22 pointing to an item with wdt:P31 wd:Q5); if the father is recorded as a plain string or missing as an item, those cases are excluded. If you prefer to include non-item fathers, I can relax that constraint.
- FamilySearch person ID is property P2889 (used as wdt:P2889). The query checks the person has a P2889 value and that the father does not.

If you want the complete 30-row table pasted here, or exported as CSV/JSON, tell me which format you prefer and I will provide it.