de Graaf
E411609
De Graaf is a Dutch surname most notably associated with figures such as Reinier de Graaf, a 17th-century physician and anatomist known for his pioneering work on the reproductive system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| de Graaf canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T4083529 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: de Graaf Context triple: [Reinier de Graaf, familyName, de Graaf]
-
A.
Ovaro
Ovaro is a small municipality in the Carnia region of Friuli-Venezia Giulia in northeastern Italy, known as a gateway village to the famous Monte Zoncolan climb in the Alps.
-
B.
Egrisi
Egrisi was a medieval Georgian kingdom that emerged as a successor to ancient Colchis in the western Caucasus region.
-
C.
Grenitote
Grenitote is a small settlement on the island of North Uist in Scotland’s Outer Hebrides.
-
D.
Neilia
Neilia was an American educator best known as the first wife of Joe Biden, who tragically died in a car accident in 1972 along with their infant daughter.
-
E.
Velda
Velda is the loyal and resourceful secretary and love interest of private investigator Mike Hammer in the hardboiled crime novel and film "Kiss Me Deadly."
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: de Graaf Target entity description: De Graaf is a Dutch surname most notably associated with figures such as Reinier de Graaf, a 17th-century physician and anatomist known for his pioneering work on the reproductive system.
-
A.
Ovaro
Ovaro is a small municipality in the Carnia region of Friuli-Venezia Giulia in northeastern Italy, known as a gateway village to the famous Monte Zoncolan climb in the Alps.
-
B.
Egrisi
Egrisi was a medieval Georgian kingdom that emerged as a successor to ancient Colchis in the western Caucasus region.
-
C.
Grenitote
Grenitote is a small settlement on the island of North Uist in Scotland’s Outer Hebrides.
-
D.
Neilia
Neilia was an American educator best known as the first wife of Joe Biden, who tragically died in a car accident in 1972 along with their infant daughter.
-
E.
Velda
Velda is the loyal and resourceful secretary and love interest of private investigator Mike Hammer in the hardboiled crime novel and film "Kiss Me Deadly."
- F. None of above. chosen
Statements (28)
| Predicate | Object |
|---|---|
| instanceOf |
Dutch-language surname
ⓘ
anatomical structure ⓘ city ⓘ city ⓘ human ⓘ surname ⓘ |
| centuryOfActivity | 17th century ⓘ |
| countryOfCitizenship | Dutch Republic ⓘ |
| countryOfOrigin | Netherlands ⓘ |
| dateOfBirth | 1641 ⓘ |
| dateOfDeath | 1673 ⓘ |
| eponymOf | Graafian follicle ⓘ |
| familyName | de Graaf ⓘ |
| fieldOfWork |
anatomy
ⓘ
medicine ⓘ reproductive physiology ⓘ |
| foundInTaxon | human ⓘ |
| givenName | Reinier ⓘ |
| hasNotableBearer | Reinier de Graaf ⓘ |
| languageOfOrigin | Dutch ⓘ |
| namedAfter | Reinier de Graaf ⓘ |
| notableFor |
description of ovarian follicles
ⓘ
pioneering work on the human reproductive system ⓘ |
| occupation |
anatomist
ⓘ
physician ⓘ |
| partOf | ovary ⓘ |
| placeOfBirth | Schoonhoven ⓘ |
| placeOfDeath | Delft ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: de Graaf Description of subject: De Graaf is a Dutch surname most notably associated with figures such as Reinier de Graaf, a 17th-century physician and anatomist known for his pioneering work on the reproductive system.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.