Contra Costa County Library
E298677
Contra Costa County Library is a public library system serving communities throughout Contra Costa County, California, with multiple branches and library services.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Contra Costa County Library canonical | 1 |
| Contra Costa County Library Kensington branch | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2795937 — 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: Contra Costa County Library Context triple: [Walnut Creek, California, hasLibrarySystem, Contra Costa County Library]
-
A.
Redwood City Public Library
Redwood City Public Library is the main public library system serving the community of Redwood City, California with books, digital resources, and community programs.
-
B.
Millbrae Library
Millbrae Library is a public library serving the community of Millbrae, California, offering lending materials, programs, and community services as part of the San Mateo County Libraries system.
-
C.
Burlingame Public Library
Burlingame Public Library is the main public library serving the city of Burlingame, California, providing community access to books, digital resources, and educational programs.
-
D.
Menlo Park Library
Menlo Park Library is the main public library serving the city of Menlo Park, California, providing community access to books, media, programs, and educational resources.
-
E.
San Francisco Public Library
The San Francisco Public Library is the city’s main public library system, providing free access to books, digital resources, and community programs through a central library and neighborhood branches.
- 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: Contra Costa County Library Target entity description: Contra Costa County Library is a public library system serving communities throughout Contra Costa County, California, with multiple branches and library services.
-
A.
Redwood City Public Library
Redwood City Public Library is the main public library system serving the community of Redwood City, California with books, digital resources, and community programs.
-
B.
Millbrae Library
Millbrae Library is a public library serving the community of Millbrae, California, offering lending materials, programs, and community services as part of the San Mateo County Libraries system.
-
C.
Burlingame Public Library
Burlingame Public Library is the main public library serving the city of Burlingame, California, providing community access to books, digital resources, and educational programs.
-
D.
Menlo Park Library
Menlo Park Library is the main public library serving the city of Menlo Park, California, providing community access to books, media, programs, and educational resources.
-
E.
San Francisco Public Library
The San Francisco Public Library is the city’s main public library system, providing free access to books, digital resources, and community programs through a central library and neighborhood branches.
- F. None of above. chosen
Statements (55)
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: Contra Costa County Library Description of subject: Contra Costa County Library is a public library system serving communities throughout Contra Costa County, California, with multiple branches and library services.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Contra Costa County Library Kensington branch