Sagan
E359976
Sagan is a surname most famously associated with astronomer and science communicator Carl Sagan and his family.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sagan canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T3445374 — 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: Sagan Context triple: [Sasha Sagan, familyName, Sagan]
-
A.
Sagan
Sagan is a town in present-day Żagań, Poland, historically known as a center where the astronomer Johannes Kepler conducted part of his scientific work.
-
B.
Niven
Niven is a Scottish-origin surname most famously associated with the English actor David Niven.
-
C.
Bardeen
Bardeen is a surname most notably associated with John Bardeen, the American physicist who won the Nobel Prize in Physics twice for his work on the transistor and superconductivity.
-
D.
Sandage
Sandage is a surname most notably associated with Allan R. Sandage, a prominent American astronomer known for his work on the expansion rate and age of the universe.
-
E.
Peleiades
The Peleiades were the sacred priestesses of the ancient Greek oracle at Dodona, believed to interpret the will of Zeus through the rustling of oak leaves and other natural signs.
- 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: Sagan Target entity description: Sagan is a surname most famously associated with astronomer and science communicator Carl Sagan and his family.
-
A.
Sagan
Sagan is a town in present-day Żagań, Poland, historically known as a center where the astronomer Johannes Kepler conducted part of his scientific work.
-
B.
Niven
Niven is a Scottish-origin surname most famously associated with the English actor David Niven.
-
C.
Bardeen
Bardeen is a surname most notably associated with John Bardeen, the American physicist who won the Nobel Prize in Physics twice for his work on the transistor and superconductivity.
-
D.
Sandage
Sandage is a surname most notably associated with Allan R. Sandage, a prominent American astronomer known for his work on the expansion rate and age of the universe.
-
E.
Peleiades
The Peleiades were the sacred priestesses of the ancient Greek oracle at Dodona, believed to interpret the will of Zeus through the rustling of oak leaves and other natural signs.
- F. None of above. chosen
Statements (36)
| Predicate | Object |
|---|---|
| instanceOf |
astronomer
ⓘ
biologist ⓘ family name ⓘ human ⓘ human ⓘ human ⓘ human ⓘ human ⓘ human ⓘ science communicator ⓘ science writer ⓘ surname ⓘ writer ⓘ writer ⓘ |
| child |
Dorian Sagan
ⓘ
Jeremy Sagan ⓘ Nick Sagan ⓘ |
| familyName | Sagan ⓘ |
| father | Carl Sagan ⓘ |
| fieldOfWork |
astrobiology
ⓘ
astrophysics ⓘ planetary science ⓘ |
| hasNotableBearer |
Carl Sagan
ⓘ
Dorian Sagan ⓘ Jeremy Sagan ⓘ Lynn Margulis ⓘ Nick Sagan ⓘ |
| languageOfOrigin |
German language
ⓘ
Polish language ⓘ |
| mother | Lynn Margulis ⓘ |
| notableWork |
Contact
ⓘ
Cosmos: A Personal Voyage ⓘ Pale Blue Dot ⓘ |
| spouse |
Ann Druyan
ⓘ
Carl Sagan ⓘ Lynn Margulis ⓘ |
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: Sagan Description of subject: Sagan is a surname most famously associated with astronomer and science communicator Carl Sagan and his family.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.