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 ?taxon ?taxonLabel ?citation ?scientificName ?rank ?rankLabel WHERE {
  ?taxon wdt:P31 / wdt:P279 * wd:Q16521 ; wdt:P6507 ?citation .
  FILTER ( ( regex( lcase( str( ?citation ) ) , "(^|[^a-z])e\\.?\\s*perrier" ) || regex( lcase( str( ?citation ) ) , "(^|[^a-z])perrier(,|\\s|\\(|$)" ) ) && ! regex( lcase( str( ?citation ) ) , "(^|[^a-z])h\\.?\\s*perrier" ) ) OPTIONAL {
    ?taxon wdt:P225 ?scientificName .
  }
  OPTIONAL {
    ?taxon wdt:P105 ?rank .
  }
  OPTIONAL {
    ?taxon rdfs:label ?taxonLabel FILTER ( LANG( ?taxonLabel ) = "en" )
  }
  OPTIONAL {
    ?rank rdfs:label ?rankLabel FILTER ( LANG( ?rankLabel ) = "en" )
  }
}
ORDER BY ?taxonLabel

Using entities:
- taxon (wd:Q16521), also known as taxa, taxonomic unit: is instance of second-order class / is subclass of group or class of organisms / group of one or more organism(s), which a taxonomist adjudges to be a unit / group of one or more organism(s), which a taxonomist adjudges to be a unit / group of one or more organism(s), which a taxonomist adjudges to be a unit / group of one or more organism(s), which a taxonomist adjudges to be a unit

Using properties:
- taxon rank (wd:P105 as wdt), also known as rank, taxonomic rank, type of taxon, P105: is subproperty of instance of / level in a taxonomic hierarchy / level in a taxonomic hierarchy / level in a taxonomic hierarchy
- taxon name (wd:P225 as wdt), also known as correct name (ICNafp), Latin name of a taxon (deprecated), scientific name of a taxon, taxonomic name, valid name (ICZN), etc.: correct scientific name of a taxon (according to the reference given) / correct scientific name of a taxon (according to the reference given)
- 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
- taxon author citation (wd:P6507 as wdt), also known as author citation for this taxon, P6507: valid author citation for a taxon using the appropriate nomenclature (ICBN, ICZN, ect.)

Got 33 rows and 6 columns, showing the first 5 and last 5 rows below:
| taxon                                             | taxonLabel                                   | citation         | scientificName                     | rank                   | rankLabel            |
| ------------------------------------------------- | -------------------------------------------- | ---------------- | ---------------------------------- | ---------------------- | -------------------- |
| Culcita veneris (wd:Q63406771)                    | Culcita veneris (lang:en)                    | Perrier, 1879    | Culcita veneris                    | species (wd:Q7432)     | species (lang:en)    |
| Digaster (wd:Q61609684)                           | Digaster (lang:en)                           | Perrier, 1872    | Digaster                           | genus (wd:Q34740)      | genus (lang:en)      |
| Digaster lumbricoides (wd:Q109340207)             | Digaster lumbricoides (lang:en)              | Perrier, 1872    | Digaster lumbricoides              | species (wd:Q7432)     | species (lang:en)    |
| Diplodontias dilatatus (wd:Q2267779)              | Diplodontias dilatatus (lang:en)             | (Perrier, 1875)  | Diplodontias dilatatus             | species (wd:Q7432)     | species (lang:en)    |
| Diplodontias singularis granulosus (wd:Q56055352) | Diplodontias singularis granulosus (lang:en) | (Perrier, 1891)  | Diplodontias singularis granulosus | subspecies (wd:Q68947) | subspecies (lang:en) |
| ...                                               | ...                                          | ...              | ...                                | ...                    | ...                  |
| Rosaster (wd:Q3456339)                            | Rosaster (lang:en)                           | Perrier, 1894    | Rosaster                           | genus (wd:Q34740)      | genus (lang:en)      |
| Rosaster alexandri (wd:Q2781335)                  | Rosaster alexandri (lang:en)                 | (Perrier, 1881)  | Rosaster alexandri                 | species (wd:Q7432)     | species (lang:en)    |
| Spoladaster veneris (wd:Q2472752)                 | Spoladaster veneris (lang:en)                | (Perrier, 1879)  | Spoladaster veneris                | species (wd:Q7432)     | species (lang:en)    |
| Tarsaster fascicularis (wd:Q3275129)              | Tarsaster fascicularis (lang:en)             | (Perrier, 1881)  | Tarsaster fascicularis             | species (wd:Q7432)     | species (lang:en)    |
| Ypsilothuria (wd:Q18380398)                       | Ypsilothuria (lang:en)                       | Perrier E., 1886 | Ypsilothuria                       | genus (wd:Q34740)      | genus (lang:en)      |

Answer:
I found 33 Wikidata taxa whose taxon-author citation (P6507) likely refers to Edmond Perrier (filtered to include "E. Perrier" / general "Perrier" citations while excluding "H. Perrier" entries). Example taxa returned by the query include:

- wd:Q63406771 — Culcita veneris (citation: "Perrier, 1879")
- wd:Q61609684 — Digaster (citation: "Perrier, 1872")
- wd:Q109340207 — Digaster lumbricoides (citation: "Perrier, 1872")
- wd:Q2267779 — Diplodontias dilatatus (citation: "(Perrier, 1875)")
- wd:Q3456339 — Rosaster (citation: "Perrier, 1894")
- wd:Q2781335 — Rosaster alexandri (citation: "(Perrier, 1881)")
- wd:Q3275129 — Tarsaster fascicularis (citation: "(Perrier, 1881)")
- wd:Q18380398 — Ypsilothuria (citation: "Perrier E., 1886")

Notes and caveats:
- Wikidata often records taxon authors as literal citation strings (P6507). Those strings sometimes omit initials or use different conventions; to avoid false positives I excluded citations explicitly mentioning "H. Perrier" (Henri Perrier de la Bâthie), who is a different botanist frequently abbreviated "H.Perrier".
- Because this matching is based on citation text rather than a structured link to the Edmond Perrier item (wd:Q927667), some ambiguity may remain (e.g., citations like "Perrier, 1894" are likely Edmond but should be manually confirmed if exact attribution is critical).

If you want, I can:
- return the complete list of the 33 taxa (full IRIs and labels), or
- refine the query further (for example by restricting to taxa of particular groups such as echinoderms) or attempt to reconcile each citation to Edmond Perrier via the primary literature references.

Final SPARQL query used (returns the taxon IRIs and associated labels/citation/rank):

SELECT ?taxon ?taxonLabel ?citation ?scientificName ?rank ?rankLabel WHERE {
  ?taxon wdt:P31/wdt:P279* wd:Q16521 ;
         wdt:P6507 ?citation .
  FILTER(
    (
      regex(lcase(str(?citation)), "(^|[^a-z])e\\.?\\s*perrier")
      || regex(lcase(str(?citation)), "(^|[^a-z])perrier(,|\\s|\\(|$)")
    )
    && !regex(lcase(str(?citation)), "(^|[^a-z])h\\.?\\s*perrier")
  )
  OPTIONAL { ?taxon wdt:P225 ?scientificName. }
  OPTIONAL { ?taxon wdt:P105 ?rank. }
  OPTIONAL { ?taxon rdfs:label ?taxonLabel FILTER(LANG(?taxonLabel)="en") }
  OPTIONAL { ?rank rdfs:label ?rankLabel FILTER(LANG(?rankLabel)="en") }
}
ORDER BY ?taxonLabel

I found 33 Wikidata taxa whose taxon-author citation (P6507) likely refers to Edmond Perrier (filtered to include "E. Perrier" / general "Perrier" citations while excluding "H. Perrier" entries). Example taxa returned by the query include:

- wd:Q63406771 — Culcita veneris (citation: "Perrier, 1879")
- wd:Q61609684 — Digaster (citation: "Perrier, 1872")
- wd:Q109340207 — Digaster lumbricoides (citation: "Perrier, 1872")
- wd:Q2267779 — Diplodontias dilatatus (citation: "(Perrier, 1875)")
- wd:Q3456339 — Rosaster (citation: "Perrier, 1894")
- wd:Q2781335 — Rosaster alexandri (citation: "(Perrier, 1881)")
- wd:Q3275129 — Tarsaster fascicularis (citation: "(Perrier, 1881)")
- wd:Q18380398 — Ypsilothuria (citation: "Perrier E., 1886")

Notes and caveats:
- Wikidata often records taxon authors as literal citation strings (P6507). Those strings sometimes omit initials or use different conventions; to avoid false positives I excluded citations explicitly mentioning "H. Perrier" (Henri Perrier de la Bâthie), who is a different botanist frequently abbreviated "H.Perrier".
- Because this matching is based on citation text rather than a structured link to the Edmond Perrier item (wd:Q927667), some ambiguity may remain (e.g., citations like "Perrier, 1894" are likely Edmond but should be manually confirmed if exact attribution is critical).

If you want, I can:
- return the complete list of the 33 taxa (full IRIs and labels), or
- refine the query further (for example by restricting to taxa of particular groups such as echinoderms) or attempt to reconcile each citation to Edmond Perrier via the primary literature references.

Final SPARQL query used (returns the taxon IRIs and associated labels/citation/rank):

SELECT ?taxon ?taxonLabel ?citation ?scientificName ?rank ?rankLabel WHERE {
  ?taxon wdt:P31/wdt:P279* wd:Q16521 ;
         wdt:P6507 ?citation .
  FILTER(
    (
      regex(lcase(str(?citation)), "(^|[^a-z])e\\.?\\s*perrier")
      || regex(lcase(str(?citation)), "(^|[^a-z])perrier(,|\\s|\\(|$)")
    )
    && !regex(lcase(str(?citation)), "(^|[^a-z])h\\.?\\s*perrier")
  )
  OPTIONAL { ?taxon wdt:P225 ?scientificName. }
  OPTIONAL { ?taxon wdt:P105 ?rank. }
  OPTIONAL { ?taxon rdfs:label ?taxonLabel FILTER(LANG(?taxonLabel)="en") }
  OPTIONAL { ?rank rdfs:label ?rankLabel FILTER(LANG(?rankLabel)="en") }
}
ORDER BY ?taxonLabel

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 ?taxon ?taxonLabel ?citation ?scientificName ?rank ?rankLabel WHERE {
  ?taxon wdt:P31 / wdt:P279 * wd:Q16521 ; wdt:P6507 ?citation .
  FILTER ( ( regex( lcase( str( ?citation ) ) , "(^|[^a-z])e\\.?\\s*perrier" ) || regex( lcase( str( ?citation ) ) , "(^|[^a-z])perrier(,|\\s|\\(|$)" ) ) && ! regex( lcase( str( ?citation ) ) , "(^|[^a-z])h\\.?\\s*perrier" ) ) OPTIONAL {
    ?taxon wdt:P225 ?scientificName .
  }
  OPTIONAL {
    ?taxon wdt:P105 ?rank .
  }
  OPTIONAL {
    ?taxon rdfs:label ?taxonLabel FILTER ( LANG( ?taxonLabel ) = "en" )
  }
  OPTIONAL {
    ?rank rdfs:label ?rankLabel FILTER ( LANG( ?rankLabel ) = "en" )
  }
}
ORDER BY ?taxonLabel

Using entities:
- taxon (wd:Q16521), also known as taxa, taxonomic unit: is instance of second-order class / is subclass of group or class of organisms / group of one or more organism(s), which a taxonomist adjudges to be a unit / group of one or more organism(s), which a taxonomist adjudges to be a unit / group of one or more organism(s), which a taxonomist adjudges to be a unit / group of one or more organism(s), which a taxonomist adjudges to be a unit

Using properties:
- taxon rank (wd:P105 as wdt), also known as rank, taxonomic rank, type of taxon, P105: is subproperty of instance of / level in a taxonomic hierarchy / level in a taxonomic hierarchy / level in a taxonomic hierarchy
- taxon name (wd:P225 as wdt), also known as correct name (ICNafp), Latin name of a taxon (deprecated), scientific name of a taxon, taxonomic name, valid name (ICZN), etc.: correct scientific name of a taxon (according to the reference given) / correct scientific name of a taxon (according to the reference given)
- 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
- taxon author citation (wd:P6507 as wdt), also known as author citation for this taxon, P6507: valid author citation for a taxon using the appropriate nomenclature (ICBN, ICZN, ect.)

Execution result:
Got 33 rows and 6 columns, showing the first 5 and last 5 rows below:
| taxon                                             | taxonLabel                                   | citation         | scientificName                     | rank                   | rankLabel            |
| ------------------------------------------------- | -------------------------------------------- | ---------------- | ---------------------------------- | ---------------------- | -------------------- |
| Culcita veneris (wd:Q63406771)                    | Culcita veneris (lang:en)                    | Perrier, 1879    | Culcita veneris                    | species (wd:Q7432)     | species (lang:en)    |
| Digaster (wd:Q61609684)                           | Digaster (lang:en)                           | Perrier, 1872    | Digaster                           | genus (wd:Q34740)      | genus (lang:en)      |
| Digaster lumbricoides (wd:Q109340207)             | Digaster lumbricoides (lang:en)              | Perrier, 1872    | Digaster lumbricoides              | species (wd:Q7432)     | species (lang:en)    |
| Diplodontias dilatatus (wd:Q2267779)              | Diplodontias dilatatus (lang:en)             | (Perrier, 1875)  | Diplodontias dilatatus             | species (wd:Q7432)     | species (lang:en)    |
| Diplodontias singularis granulosus (wd:Q56055352) | Diplodontias singularis granulosus (lang:en) | (Perrier, 1891)  | Diplodontias singularis granulosus | subspecies (wd:Q68947) | subspecies (lang:en) |
| ...                                               | ...                                          | ...              | ...                                | ...                    | ...                  |
| Rosaster (wd:Q3456339)                            | Rosaster (lang:en)                           | Perrier, 1894    | Rosaster                           | genus (wd:Q34740)      | genus (lang:en)      |
| Rosaster alexandri (wd:Q2781335)                  | Rosaster alexandri (lang:en)                 | (Perrier, 1881)  | Rosaster alexandri                 | species (wd:Q7432)     | species (lang:en)    |
| Spoladaster veneris (wd:Q2472752)                 | Spoladaster veneris (lang:en)                | (Perrier, 1879)  | Spoladaster veneris                | species (wd:Q7432)     | species (lang:en)    |
| Tarsaster fascicularis (wd:Q3275129)              | Tarsaster fascicularis (lang:en)             | (Perrier, 1881)  | Tarsaster fascicularis             | species (wd:Q7432)     | species (lang:en)    |
| Ypsilothuria (wd:Q18380398)                       | Ypsilothuria (lang:en)                       | Perrier E., 1886 | Ypsilothuria                       | genus (wd:Q34740)      | genus (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] What are the taxa authored by Edmond Perrier?

[Assistant]
I'll search for the Wikidata property used for "taxon author" (and related author properties) to be sure I use the correct P-id. Then I'll search for the entity for Edmond Perrier and confirm it's a human. After that I'll build a query that finds taxa (items that are instances of taxon: e.g., taxon Q16521 or subclass) whose taxon author is Edmond Perrier. I'll explain each step and run intermediate queries to verify. I'll start by searching for the property "taxon author".

Question: taxon author

Top 10 property alternatives:
1. taxon author (wd:P405 as pq/pqn/prv/ps/psn/pqv/prn/wdt/psv/wdtn/pr/p), also known as author citation, described by, taxon authority, P405: the author(s) that (optionally) may be cited with the scientific name / the author(s) of the taxon / the author(s) of the taxon
2. taxon author citation (wd:P6507 as pq/pqn/prv/ps/psn/pqv/prn/wdt/psv/wdtn/pr/p), also known as author citation for this taxon, P6507: valid author citation for a taxon using the appropriate nomenclature (ICBN, ICZN, ect.)
3. taxonomic type (wd:P427 as pq/pqn/prv/ps/psn/pqv/prn/wdt/psv/wdtn/pr/p, matched via type taxon), also known as genotype, species typica, type, type genus, type species, etc.: type genus or species: [in zoology:] nominal genus or species ... the name-bearing type of this nominal species or subspecies
4. GBIF taxon ID (wd:P846 as pq/pqn/prv/ps/psn/pqv/prn/wdt/psv/wdtn/pr/p, matched via taxonKey), also known as GBIF ID, Global Biodiversity Information Facility ID, taxonKey, P846: taxon identifier in GBIF
5. author citation (zoology) (wd:P835 as pq/pqn/prv/ps/psn/pqv/prn/wdt/psv/wdtn/pr/p, matched via zoology author name), also known as abbreviation of author in zoology, author abbreviation in zoology, zoologist author name, zoologist name, zoology author name, etc.: standard abbreviation of an author's name, used to cite the first description of a new species / short form of the name used after a taxon this person has authored / is subproperty of short name
6. taxon name (wd:P225 as pq/pqn/prv/ps/psn/pqv/prn/wdt/psv/wdtn/pr/p), also known as correct name (ICNafp), Latin name of a taxon (deprecated), scientific name of a taxon, taxonomic name, valid name (ICZN), etc.: correct scientific name of a taxon (according to the reference given) / correct scientific name of a taxon (according to the reference given)
7. taxon especially protected in area (wd:P6569 as pq/pqn/prv/ps/psn/pqv/prn/wdt/psv/wdtn/pr/p, matched via protected taxon), also known as animal protected, plant protected, protected animal, protected plant, protected species, etc.: species and other taxa especially protected in a area, ... entities: use red lists properties instead.
8. natural product of taxon (wd:P1582 as pq/pqn/prv/ps/psn/pqv/prn/wdt/psv/wdtn/pr/p, matched via produced by taxon), also known as comes from (taxon), derived from, fruit of (taxon), made from, produced by taxon, etc.: links a natural product with its source (animal, plant, fungal, algal, etc.) / links a natural product with its source (animal, plant, fungal, algal, etc.)
9. year of publication of scientific name for taxon (wd:P574 as pq/pqn/prv/ps/psn/pqv/prn/wdt/psv/wdtn/pr/p, matched via taxon date), also known as date of scientific description, date of taxon description publication, described in, taxon date, taxon year, etc.: year when this taxon was formally described (for animals); year when this taxon name was formally established (for plants) / year when this scientific name was formally established / is subproperty of date of publication / is subproperty of publication date
10. individual of taxon (wd:P10241 as pq/pqn/prv/ps/psn/pqv/prn/wdt/psv/wdtn/pr/p, matched via taxon of subject), also known as instance of taxon, is an individual of taxon, is an individual of the taxon, is individual of taxon, is individual of the taxon, etc.: the taxon of an individual named organism (animal, plant) / is subproperty of instance of

[Assistant]
I'll search for the person "Edmond Perrier" to find his Wikidata Q-id and confirm he's a human (wdt:P31 wd:Q5).

Question: Edmond Perrier

Top 10 entity alternatives:
1. Edmond Perrier (wd:Q927667), also known as E. Perrier, E.Perrier, Jean Octave Edmond Perrier, Perrier: has occupation university teacher / French zoologist (1844-1921) / has occupation naturalist / has occupation biologist / has occupation zoologist / has occupation botanist / is instance of human / French zoologist / French zoologist
2. Lycée Edmond Perrier (wd:Q3268657), also known as Lycee Edmond Perrier: public school in Tulle, Limousin, France / is instance of educational facility / is instance of school building
3. Prof. Edmond Perrier (wd:Q60078941): scientific article published in Nature / is instance of scholarly article / is instance of academic article
4. Edmond Halley (wd:Q47434), also known as Edmund Halley: English astronomer, mathematician, geophysicist, meteorologist and physicist / has occupation university teacher / has occupation climatologist / has occupation meteorologist / has occupation mathematician / has occupation geophysicist / has occupation cartographer / has occupation philosopher / has occupation Philosopher / has occupation astronomer / has occupation physicist / is instance of human
5. Edmond Rostand (wd:Q202749), also known as Edmond Eugène Alexis Rostand: French poet and dramatist (1868–1918) / has occupation playwright / has occupation essayist / has occupation writer / is instance of human / has occupation poet / French writer / French writer
6. Edmond (wd:Q862645), also known as Edmond, OK, Edmond, Oklahoma: city in Oklahoma County, Oklahoma, United States / is instance of city of the United States / is instance of city in the United States
7. Edmond Debeaumarché (wd:Q3047794), also known as Edmond Debeaumarche: has occupation French resistance fighter / has occupation politician / French Resistance member / is instance of human
8. Edmond François Valentin About (wd:Q361004, matched via Edmond About), also known as Edmond About, Edmond-François-Valentin About: has occupation science fiction writer / French writer and critic (1828-1885) / has occupation art critic / has occupation journalist / has occupation playwright / has occupation novelist / has occupation writer / is instance of human
9. Edmond O'Brien (wd:Q119935): has occupation television actor / has occupation Film producer / has occupation film producer / has occupation film director / has occupation stage actor / American actor (1915–1985) / has occupation film actor / has occupation actor / is instance of human
10. John Hughes (wd:Q311263, matched via Edmond Dantes), also known as Edmond Dantes, John Hughes Jr., John Hughes, Jr.: has occupation film screenwriter / American filmmaker (1950–2009) / has occupation film director / has occupation film producer / has occupation Film producer / has occupation screenwriter / has occupation film actor / has occupation writer / is instance of human

[Assistant]
I'll verify the Wikidata item for "taxon" to use it as a type filter in the query.

Question: taxon

Top 10 entity alternatives:
1. taxon (wd:Q16521), also known as taxa, taxonomic unit: group of one or more organism(s), which a taxonomist adjudges to be a unit / group of one or more organism(s), which a taxonomist adjudges to be a unit / group of one or more organism(s), which a taxonomist adjudges to be a unit / group of one or more organism(s), which a taxonomist adjudges to be a unit / is subclass of group or class of organisms / is instance of second-order class
2. Taxon (wd:Q2003024), also known as Taxon. The Journal of the International Association for Plant Taxonomy: is instance of scientific journal / is instance of academic journal / is instance of society journal / academic journal
3. TaxOn (wd:Q21386141), also known as ISSN 2079-1380: is instance of scientific journal / scientific journal
4. ¡Taxon! (wd:Q96184500): scientific article published in 1993 / scientific article published in 1993 / scientific article published in 1993 / is instance of scholarly article / is instance of academic article
5. biological classification (wd:Q11398, matched via taxonomy), also known as biological and zoological classification, classification of organisms, scientific classification, taxonomic classification, taxonomy: is subclass of specialised classification scheme / is instance of type of classification / method of scientific taxonomy / is subclass of taxonomy
6. extinction (wd:Q123509, matched via taxon extinction), also known as biological extinction, dying out, extinction of species, extinction of taxa, extinctions, etc.: termination of a taxon by the death of its last member / is instance of biological phenomenon / is subclass of biological risk / is subclass of end
7. taxonomy (wd:Q8269924), also known as biotaxonomy: science of naming, defining and classifying organisms / is instance of academic discipline / is instance of discipline / is subclass of typology
8. taxonomy (wd:Q7211), also known as taxonomic scheme: classification of things or concepts, as well as to the ... which is dealing with the classification of parts of a whole / is subclass of hierarchical classification / is subclass of classification scheme / is subclass of classification
9. clade (wd:Q713623, matched via monophyletic taxon), also known as evolutionary clade, monophyletic group, monophyletic taxon: group of a common ancestor and all descendants / is instance of taxonomic rank / is subclass of taxon
10. synonym (wd:Q1040689, matched via taxon synonym), also known as synonym (taxonomy), taxonomic synonym, taxon synonym: one of two or more names that apply to the same taxon / is instance of scientific name / is subclass of scientific name

[Assistant]
Plan: run a SPARQL query that finds items whose taxon author (wdt:P405) is Edmond Perrier (wd:Q927667) and that are taxa (instance of or subclass of wd:Q16521). Retrieve the taxon item IRI, its English label, scientific name (P225), and taxon rank (P105 + label). I'll execute the query to get the list. Now I'll run the query.

execute

SELECT ?taxon ?taxonLabel ?scientificName ?rank ?rankLabel WHERE {
  VALUES ?author { wd:Q927667 }
  ?taxon wdt:P405 ?author .
  ?taxon wdt:P31/wdt:P279* wd:Q16521 .
  OPTIONAL { ?taxon wdt:P225 ?scientificName. }
  OPTIONAL { ?taxon wdt:P105 ?rank. }
  OPTIONAL { ?taxon rdfs:label ?taxonLabel FILTER(LANG(?taxonLabel)="en") }
  OPTIONAL { ?rank rdfs:label ?rankLabel FILTER(LANG(?rankLabel)="en") }
}
ORDER BY ?taxonLabel

[Assistant] I'll check triples that use property P405 with Edmond Perrier as object to confirm how the data is modeled.

[Assistant]
I'll search for properties associated with Edmond Perrier that might indicate authoring taxa (e.g., used as author of taxa with different properties). I'll use search_property_of_entity constrained to the Edmond Perrier item and query "author" and "taxon". This helps discover which properties link him to taxa in practice.

Question: author

Top 10 property alternatives:
1. contributed to creative work (wd:P3919 as p/wdt, matched via contributor), also known as collaborator on, contributed to, contributed to work, contributor, contributor to, etc.: person is cited as contributing to some creative or published work or series (qualify with "subject has role", P2868)
2. botanist author abbreviation (wd:P428 as p/wdt, matched via botanical author abbreviation), also known as abbreviation of botanist, author abbreviation of botanist, botanical author abbreviation, botanic author abbreviation, botanist name, etc.: standard form (official abbreviation) of a personal name for ... author citation (only for names of algae, fungi and plants)
3. GND ID (wd:P227 as p/wdtn/wdt, matched via DNB author ID), also known as Deutschen Nationalbibliothek ID, DNB author ID, DNB authorities, Gemeinsame Normdatei ID, German National Library ID, etc.: international authority file of names, subjects, and organisations (please don't use type n = name, disambiguation) / identifier from an international authority file of names, subjects, and organizations
4. educated at (wd:P69 as p/wdt, matched via faculty), also known as alma mater, alumna of, alumni of, alumnus of, attended, etc.: educational institution attended by the subject / educational institution attended by the subject / educational institution attended by subject / is subproperty of affiliation
5. Open Library ID (wd:P648 as p/wdtn/wdt, matched via OpenLibrary author ID), also known as OL ID, OLID, Open Library author ID, OpenLibrary author ID, Open Library book ID, etc.: identifier in "the Internet Archive" for information about a work ("W"), edition ("M") or author ("A") of a book / identifier for a work ("W"), edition ("M") or author ("A") for book data of the Internet Archive
6. Project Gutenberg author ID (wd:P1938 as p/wdtn/wdt), also known as Gutenberg ID, gutenberg.org/ebooks/author/, Project Gutenberg ID (author), P1938: author identifier at Project Gutenberg
7. given name (wd:P735 as p/wdt, matched via personal name), also known as Christian name, first name, forename, middle name, name, etc.: first name or another given name of this person; values used with the property should not link disambiguations nor family names / first name or another given name of this person; values used with the property shouldn't link disambiguations nor family names / first name or another given name of this person; values used with the property shouldn't link disambiguations nor family names / is subproperty of name
8. IPNI author ID (wd:P586 as p/wdt), also known as IPNI ID (author), IPNI Life Sciences Identifier (LSID), LSID, P586: numerical identifier for a person in the International Plant Names Index
9. Nationale Thesaurus voor Auteursnamen ID (wd:P1006 as p/wdtn/wdt), also known as data.bibliotheken.nl ID, Dutch National Thesaurus for Author Names ID, Dutch Thesaurus for Author Names ID, Nationale Thesaurus voor Auteurs, National Thesaurus for Author Names ID, etc.: identifier for person names (not: works nor organisations) ... Thesaurus for Author names (which also contains non-authors) / National Thesaurus for Author names (Dutch author-name thesaurus)
10. SBN author ID (wd:P396 as p/wdt), also known as ICCU, SBN, SBN identifier, Servizio Bibliotecario Nazionale, P396: identifier issued by National Library Service (SBN) of Italy

No other items found

[Assistant]
I'll search objects of property P6507 ("taxon author citation") for the string "Perrier" to see if taxa have author citations recorded as strings rather than links.

Question: Perrier

No entity items found

No other items found

Top 10 literal alternatives:
1. Perrier, 1871 ("Perrier, 1871")
2. Perrier, 1872 ("Perrier, 1872")
3. Perrier, 1873 ("Perrier, 1873")
4. Perrier, 1874 ("Perrier, 1874")
5. (Perrier, 1875) ("(Perrier, 1875)")
6. (Perrier, 1879) ("(Perrier, 1879)")
7. Perrier, 1879 ("Perrier, 1879")
8. (Perrier, 1881) ("(Perrier, 1881)")
9. Perrier, 1881 ("Perrier, 1881")
10. (Perrier, 1884) ("(Perrier, 1884)")

[Assistant]
Next I'll query taxa that have a taxon-author citation string (property P6507) containing "Perrier" — this will catch taxa whose author is recorded as a literal citation rather than a linked item. I'll retrieve the taxon IRI, English label, the citation string, scientific name (P225) and rank (P105). Now I'll run that query.

SELECT ?taxon ?taxonLabel ?citation ?scientificName ?rank ?rankLabel WHERE {
  ?taxon wdt:P31/wdt:P279* wd:Q16521 .
  ?taxon wdt:P6507 ?citation .
  FILTER(CONTAINS(LCASE(STR(?citation)), "perrier"))
  OPTIONAL { ?taxon wdt:P225 ?scientificName. }
  OPTIONAL { ?taxon wdt:P105 ?rank. }
  OPTIONAL { ?taxon rdfs:label ?taxonLabel FILTER(LANG(?taxonLabel)="en") }
  OPTIONAL { ?rank rdfs:label ?rankLabel FILTER(LANG(?rankLabel)="en") }
}
ORDER BY ?taxonLabel

Got 58 rows and 6 columns, showing the first 5 and last 5 rows below:
| taxon                                  | taxonLabel                        | citation            | scientificName          | rank               | rankLabel         |
| -------------------------------------- | --------------------------------- | ------------------- | ----------------------- | ------------------ | ----------------- |
| Aerangis rostellaris (wd:Q15287215)    | Aerangis rostellaris (lang:en)    | (Rchb.f.) H.Perrier | Aerangis rostellaris    | species (wd:Q7432) | species (lang:en) |
| Angraecopsis pobeguinii (wd:Q5676816)  | Angraecopsis pobeguinii (lang:en) | (Finet) H.Perrier   | Angraecopsis pobeguinii | species (wd:Q7432) | species (lang:en) |
| Angraecum kranzlinianum (wd:Q15496826) | Angraecum kranzlinianum (lang:en) | H.Perrier           | Angraecum kranzlinianum | species (wd:Q7432) | species (lang:en) |
| Baudouinia rouxevillei (wd:Q15525499)  | Baudouinia rouxevillei (lang:en)  | H.Perrier           | Baudouinia rouxevillei  | species (wd:Q7432) | species (lang:en) |
| Beccariophoenix (wd:Q2711099)          | Beccariophoenix (lang:en)         | Jum. & H.Perrier    | Beccariophoenix         | genus (wd:Q34740)  | genus (lang:en)   |
| ...                                    | ...                               | ...                 | ...                     | ...                | ...               |
| Rosaster alexandri (wd:Q2781335)       | Rosaster alexandri (lang:en)      | (Perrier, 1881)     | Rosaster alexandri      | species (wd:Q7432) | species (lang:en) |
| Spoladaster veneris (wd:Q2472752)      | Spoladaster veneris (lang:en)     | (Perrier, 1879)     | Spoladaster veneris     | species (wd:Q7432) | species (lang:en) |
| Tarsaster fascicularis (wd:Q3275129)   | Tarsaster fascicularis (lang:en)  | (Perrier, 1881)     | Tarsaster fascicularis  | species (wd:Q7432) | species (lang:en) |
| Vanilla decaryana (wd:Q10389121)       | Vanilla decaryana (lang:en)       | H.Perrier           | Vanilla decaryana       | species (wd:Q7432) | species (lang:en) |
| Ypsilothuria (wd:Q18380398)            | Ypsilothuria (lang:en)            | Perrier E., 1886    | Ypsilothuria            | genus (wd:Q34740)  | genus (lang:en)   |

[Assistant]
I'll retrieve the distinct author-citation strings (P6507) containing "perrier" so I can inspect which forms refer to Edmond Perrier (E. Perrier / Perrier) and which are H. Perrier (Henri Perrier de la Bâthie). This will let me refine the filter to match Edmond Perrier specifically. I'll run a query to list the distinct citation strings.

SELECT DISTINCT ?citation WHERE {
  ?taxon wdt:P31/wdt:P279* wd:Q16521 ;
         wdt:P6507 ?citation .
  FILTER(CONTAINS(LCASE(STR(?citation)), "perrier"))
}
ORDER BY ?citation

Got 30 rows and 1 column, showing the first 5 and last 5 rows below:
| citation                          |
| --------------------------------- |
| A.Camus & H.Perrier               |
| (Finet) H.Perrier                 |
| Hamet & Perrier                   |
| H.Perrier                         |
| H.Perrier ex Francois & H.Perrier |
| ...                               |
| Perrier, 1894                     |
| Perrier, 1897                     |
| Perrier E., 1886                  |
| (Rchb.f.) H.Perrier               |
| Songeon & E. Perrier              |

[Assistant]
I'll list triples where Edmond Perrier (wd:Q927667) is the object to see which properties link taxa to him (if any). This helps find a more reliable structured link than string matching.

list

Got 311 rows and 3 columns, showing the first 10 rows below:
| subject                                                                                | property                    | object                      |
| ------------------------------------------------------------------------------------------------------------------------------------ | --------------------------- | --------------------------- |
| Première note préliminaire sur les Échinodermes recueillis ... de dragages sous-marins du Travailleur et du Talisman (wd:Q104813217) | author (wdt:P50)            | Edmond Perrier (wd:Q927667) |
| Anasterias perrieri (wd:Q105395150)                                                                                | named after (wdt:P138)      | Edmond Perrier (wd:Q927667) |
| Rémy Perrier (wd:Q2178760)                                                                                | sibling (wdt:P3373)         | Edmond Perrier (wd:Q927667) |
| s:Q23034946-E499C792-9B2C-4A6B-B4F2-61B15EB3FA14                                                                                | replaced by (pq:P1366)      | Edmond Perrier (wd:Q927667) |
| s:Q23034946-AD874FCC-A97F-4EF8-8434-DE90DB6E26B5                                                                                | replaces (pq:P1365)         | Edmond Perrier (wd:Q927667) |
| Friends of the Natural History Museum Paris (wd:Q17341687)                                                                           | founded by (wdt:P112)       | Edmond Perrier (wd:Q927667) |
| wd:Q97841663                                                                                | chairperson (wdt:P488)      | Edmond Perrier (wd:Q927667) |
| president of the French Academy of Sciences (wd:Q23034946)                                                                           | position holder (wdt:P1308) | Edmond Perrier (wd:Q927667) |
| s:Q543912-8d0c08b2-4919-e416-aac4-b25ce88f9412                                                                                | conferred by (pq:P1027)     | Edmond Perrier (wd:Q927667) |
| s:Q105395111-4271634F-735D-4B42-BA8B-D01B9BD82191                                                                                | taxon author (pq:P405)      | Edmond Perrier (wd:Q927667) |
| ...                                                                                | ...                         | ...                         |

[Assistant]
I'll run a refined query that:
- selects taxa (wd:Q16521)
- keeps taxon author citation strings (P6507) that likely refer to Edmond Perrier by:
  - matching "E. Perrier" / "Perrier E." explicitly, or
  - matching "Perrier" in general but excluding forms that start with "H. Perrier" (Henri Perrier de la Bâthie)
This will reduce false positives from H.Perrier while retaining likely Edmond Perrier citations such as "Perrier, 1881" or "Perrier E." I'll execute that query to retrieve candidate taxa authored by Edmond Perrier.

execute

SELECT ?taxon ?taxonLabel ?citation ?scientificName ?rank ?rankLabel WHERE {
  ?taxon wdt:P31/wdt:P279* wd:Q16521 ;
         wdt:P6507 ?citation .
  FILTER(
    (
      regex(lcase(str(?citation)), "(^|[^a-z])e\\.?\\s*perrier")
      || regex(lcase(str(?citation)), "(^|[^a-z])perrier(,|\\s|\\(|$)")
    )
    && !regex(lcase(str(?citation)), "(^|[^a-z])h\\.?\\s*perrier")
  )
  OPTIONAL { ?taxon wdt:P225 ?scientificName. }
  OPTIONAL { ?taxon wdt:P105 ?rank. }
  OPTIONAL { ?taxon rdfs:label ?taxonLabel FILTER(LANG(?taxonLabel)="en") }
  OPTIONAL { ?rank rdfs:label ?rankLabel FILTER(LANG(?rankLabel)="en") }
}
ORDER BY ?taxonLabel

Got 33 rows and 6 columns, showing the first 5 and last 5 rows below:
| taxon                                             | taxonLabel                                   | citation         | scientificName                     | rank                   | rankLabel            |
| ------------------------------------------------- | -------------------------------------------- | ---------------- | ---------------------------------- | ---------------------- | -------------------- |
| Culcita veneris (wd:Q63406771)                    | Culcita veneris (lang:en)                    | Perrier, 1879    | Culcita veneris                    | species (wd:Q7432)     | species (lang:en)    |
| Digaster (wd:Q61609684)                           | Digaster (lang:en)                           | Perrier, 1872    | Digaster                           | genus (wd:Q34740)      | genus (lang:en)      |
| Digaster lumbricoides (wd:Q109340207)             | Digaster lumbricoides (lang:en)              | Perrier, 1872    | Digaster lumbricoides              | species (wd:Q7432)     | species (lang:en)    |
| Diplodontias dilatatus (wd:Q2267779)              | Diplodontias dilatatus (lang:en)             | (Perrier, 1875)  | Diplodontias dilatatus             | species (wd:Q7432)     | species (lang:en)    |
| Diplodontias singularis granulosus (wd:Q56055352) | Diplodontias singularis granulosus (lang:en) | (Perrier, 1891)  | Diplodontias singularis granulosus | subspecies (wd:Q68947) | subspecies (lang:en) |
| ...                                               | ...                                          | ...              | ...                                | ...                    | ...                  |
| Rosaster (wd:Q3456339)                            | Rosaster (lang:en)                           | Perrier, 1894    | Rosaster                           | genus (wd:Q34740)      | genus (lang:en)      |
| Rosaster alexandri (wd:Q2781335)                  | Rosaster alexandri (lang:en)                 | (Perrier, 1881)  | Rosaster alexandri                 | species (wd:Q7432)     | species (lang:en)    |
| Spoladaster veneris (wd:Q2472752)                 | Spoladaster veneris (lang:en)                | (Perrier, 1879)  | Spoladaster veneris                | species (wd:Q7432)     | species (lang:en)    |
| Tarsaster fascicularis (wd:Q3275129)              | Tarsaster fascicularis (lang:en)             | (Perrier, 1881)  | Tarsaster fascicularis             | species (wd:Q7432)     | species (lang:en)    |
| Ypsilothuria (wd:Q18380398)                       | Ypsilothuria (lang:en)                       | Perrier E., 1886 | Ypsilothuria                       | genus (wd:Q34740)      | genus (lang:en)      |

[Assistant]
answer

SELECT ?taxon ?taxonLabel ?citation ?scientificName ?rank ?rankLabel WHERE {
  ?taxon wdt:P31/wdt:P279* wd:Q16521 ;
         wdt:P6507 ?citation .
  FILTER(
    (
      regex(lcase(str(?citation)), "(^|[^a-z])e\\.?\\s*perrier")
      || regex(lcase(str(?citation)), "(^|[^a-z])perrier(,|\\s|\\(|$)")
    )
    && !regex(lcase(str(?citation)), "(^|[^a-z])h\\.?\\s*perrier")
  )
  OPTIONAL { ?taxon wdt:P225 ?scientificName. }
  OPTIONAL { ?taxon wdt:P105 ?rank. }
  OPTIONAL { ?taxon rdfs:label ?taxonLabel FILTER(LANG(?taxonLabel)="en") }
  OPTIONAL { ?rank rdfs:label ?rankLabel FILTER(LANG(?rankLabel)="en") }
}
ORDER BY ?taxonLabel

Answer:
I found 33 Wikidata taxa whose taxon-author citation (P6507) likely refers to Edmond Perrier (filtered to include "E. Perrier" / general "Perrier" citations while excluding "H. Perrier" entries). Example taxa returned by the query include:

- wd:Q63406771 — Culcita veneris (citation: "Perrier, 1879")
- wd:Q61609684 — Digaster (citation: "Perrier, 1872")
- wd:Q109340207 — Digaster lumbricoides (citation: "Perrier, 1872")
- wd:Q2267779 — Diplodontias dilatatus (citation: "(Perrier, 1875)")
- wd:Q3456339 — Rosaster (citation: "Perrier, 1894")
- wd:Q2781335 — Rosaster alexandri (citation: "(Perrier, 1881)")
- wd:Q3275129 — Tarsaster fascicularis (citation: "(Perrier, 1881)")
- wd:Q18380398 — Ypsilothuria (citation: "Perrier E., 1886")

Notes and caveats:
- Wikidata often records taxon authors as literal citation strings (P6507). Those strings sometimes omit initials or use different conventions; to avoid false positives I excluded citations explicitly mentioning "H. Perrier" (Henri Perrier de la Bâthie), who is a different botanist frequently abbreviated "H.Perrier".
- Because this matching is based on citation text rather than a structured link to the Edmond Perrier item (wd:Q927667), some ambiguity may remain (e.g., citations like "Perrier, 1894" are likely Edmond but should be manually confirmed if exact attribution is critical).

If you want, I can:
- return the complete list of the 33 taxa (full IRIs and labels), or
- refine the query further (for example by restricting to taxa of particular groups such as echinoderms) or attempt to reconcile each citation to Edmond Perrier via the primary literature references.

Final SPARQL query used (returns the taxon IRIs and associated labels/citation/rank):

SELECT ?taxon ?taxonLabel ?citation ?scientificName ?rank ?rankLabel WHERE {
  ?taxon wdt:P31/wdt:P279* wd:Q16521 ;
         wdt:P6507 ?citation .
  FILTER(
    (
      regex(lcase(str(?citation)), "(^|[^a-z])e\\.?\\s*perrier")
      || regex(lcase(str(?citation)), "(^|[^a-z])perrier(,|\\s|\\(|$)")
    )
    && !regex(lcase(str(?citation)), "(^|[^a-z])h\\.?\\s*perrier")
  )
  OPTIONAL { ?taxon wdt:P225 ?scientificName. }
  OPTIONAL { ?taxon wdt:P105 ?rank. }
  OPTIONAL { ?taxon rdfs:label ?taxonLabel FILTER(LANG(?taxonLabel)="en") }
  OPTIONAL { ?rank rdfs:label ?rankLabel FILTER(LANG(?rankLabel)="en") }
}
ORDER BY ?taxonLabel