Regan
E125600
Regan is a surname most notably associated with Michael S. Regan, the American environmental regulator and current Administrator of the U.S. Environmental Protection Agency.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Regan canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T1039542 — 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: Regan Context triple: [Michael S. Regan, familyName, Regan]
-
A.
Kathleen
Kathleen is a feminine given name of Irish origin, derived from the name Catherine and widely used in English-speaking countries.
-
B.
Patricia
Patricia is a feminine given name of Latin origin, commonly used in English-speaking countries.
-
C.
Brooke Blair
Brooke Blair is a film composer best known for co-scoring the intense thriller "Green Room," often collaborating with his brother Will Blair.
-
D.
Kathryn
Kathryn is a feminine given name, commonly considered a variant spelling of Katherine/Catherine.
-
E.
Janet
Janet is a feminine given name commonly used in English-speaking countries, often associated with notable figures in entertainment and public life.
- 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: Regan Target entity description: Regan is a surname most notably associated with Michael S. Regan, the American environmental regulator and current Administrator of the U.S. Environmental Protection Agency.
-
A.
Kathleen
Kathleen is a feminine given name of Irish origin, derived from the name Catherine and widely used in English-speaking countries.
-
B.
Patricia
Patricia is a feminine given name of Latin origin, commonly used in English-speaking countries.
-
C.
Brooke Blair
Brooke Blair is a film composer best known for co-scoring the intense thriller "Green Room," often collaborating with his brother Will Blair.
-
D.
Kathryn
Kathryn is a feminine given name, commonly considered a variant spelling of Katherine/Catherine.
-
E.
Janet
Janet is a feminine given name commonly used in English-speaking countries, often associated with notable figures in entertainment and public life.
- F. None of above. chosen
Statements (18)
| Predicate | Object |
|---|---|
| instanceOf |
environmental regulator
ⓘ
family name ⓘ government official ⓘ human ⓘ surname ⓘ |
| countryOfCitizenship | United States of America ⓘ |
| employer | United States Environmental Protection Agency ⓘ |
| familyName | Regan self-linksurface differs ⓘ |
| fieldOfWork |
climate policy
ⓘ
environmental policy ⓘ environmental regulation ⓘ |
| givenName | Michael ⓘ |
| hasNotableBearer | Michael S. Regan ⓘ |
| notableFor | serving as Administrator of the U.S. Environmental Protection Agency ⓘ |
| occupation | Administrator of the U.S. Environmental Protection Agency ⓘ |
| positionHeld |
Administrator of the Environmental Protection Agency (Cabinet-level)
ⓘ
surface form:
Administrator of the Environmental Protection Agency
|
| usedInCountry |
United States of America
ⓘ
surface form:
United States
|
| usedInLanguage | English ⓘ |
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: Regan Description of subject: Regan is a surname most notably associated with Michael S. Regan, the American environmental regulator and current Administrator of the U.S. Environmental Protection Agency.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Michael S. Regan