Alexandra Kostoff
E819412
Alexandra Kostoff was the first wife of American novelist and screenwriter Sidney Sheldon.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Alexandra Kostoff canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T9676774 — 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: Alexandra Kostoff Context triple: [Sidney Sheldon, spouse, Alexandra Kostoff]
-
A.
Alexandra Papenfus
Alexandra Papenfus is a person after whom another individual named Alexandra was named, suggesting she holds personal or familial significance to the namer.
-
B.
Tania Kosevich
Tania Kosevich is best known as the wife of British comedian, actor, and Monty Python member Eric Idle.
-
C.
Tana Mundkowsky
Tana Mundkowsky is an American woman best known as the wife of The Killers’ lead singer Brandon Flowers and for her influence on some of the band’s songs and imagery.
-
D.
Tatiana Schlossberg
Tatiana Schlossberg is an American journalist and author, known for her environmental reporting and as a member of the Kennedy family.
-
E.
Kathryn Chetkovich
Kathryn Chetkovich is an American writer and essayist known for her fiction and for her widely discussed essay about envy and literary success.
- 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: Alexandra Kostoff Target entity description: Alexandra Kostoff was the first wife of American novelist and screenwriter Sidney Sheldon.
-
A.
Alexandra Papenfus
Alexandra Papenfus is a person after whom another individual named Alexandra was named, suggesting she holds personal or familial significance to the namer.
-
B.
Tania Kosevich
Tania Kosevich is best known as the wife of British comedian, actor, and Monty Python member Eric Idle.
-
C.
Tana Mundkowsky
Tana Mundkowsky is an American woman best known as the wife of The Killers’ lead singer Brandon Flowers and for her influence on some of the band’s songs and imagery.
-
D.
Tatiana Schlossberg
Tatiana Schlossberg is an American journalist and author, known for her environmental reporting and as a member of the Kennedy family.
-
E.
Kathryn Chetkovich
Kathryn Chetkovich is an American writer and essayist known for her fiction and for her widely discussed essay about envy and literary success.
- F. None of above. chosen
Statements (8)
| Predicate | Object |
|---|---|
| instanceOf | human ⓘ |
| countryOfCitizenship |
United States of America
ⓘ
United States of America ⓘ |
| notableFor | being the first wife of Sidney Sheldon ⓘ |
| occupation |
novelist
ⓘ
screenwriter ⓘ |
| spouse |
Alexandra Kostoff
ⓘ
Sidney Sheldon ⓘ |
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: Alexandra Kostoff Description of subject: Alexandra Kostoff was the first wife of American novelist and screenwriter Sidney Sheldon.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Alexandra Kostoff