Union Square Branch
E138636
The Union Square Branch is a segment of Boston's MBTA Green Line light rail system that extends service to the Union Square area of Somerville.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Union Square Branch canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T1178216 — 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: Union Square Branch Context triple: [MBTA Green Line, hasBranch, Union Square Branch]
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A.
Mid-Manhattan Library
The Mid-Manhattan Library is a major circulating branch of the New York Public Library system in Manhattan, known for its extensive general-interest collections and public services.
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B.
Jefferson Market Library
Jefferson Market Library is a historic former courthouse in New York City's Greenwich Village that now serves as a public branch of the New York Public Library.
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C.
Brooklyn Public Library (Central Library)
Brooklyn Public Library’s Central Library is the flagship branch and main headquarters of the Brooklyn Public Library system, known for its landmark Art Deco building and extensive collections and services.
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D.
Brooklyn Public Library branches
Brooklyn Public Library branches are neighborhood library facilities in Brooklyn, New York, that provide free access to books, digital resources, educational programs, and community services.
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E.
Yonkers Public Library
Yonkers Public Library is the main public library system serving the city of Yonkers, New York, providing community access to books, digital resources, and educational programs.
- 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: Union Square Branch Target entity description: The Union Square Branch is a segment of Boston's MBTA Green Line light rail system that extends service to the Union Square area of Somerville.
-
A.
Mid-Manhattan Library
The Mid-Manhattan Library is a major circulating branch of the New York Public Library system in Manhattan, known for its extensive general-interest collections and public services.
-
B.
Jefferson Market Library
Jefferson Market Library is a historic former courthouse in New York City's Greenwich Village that now serves as a public branch of the New York Public Library.
-
C.
Brooklyn Public Library (Central Library)
Brooklyn Public Library’s Central Library is the flagship branch and main headquarters of the Brooklyn Public Library system, known for its landmark Art Deco building and extensive collections and services.
-
D.
Brooklyn Public Library branches
Brooklyn Public Library branches are neighborhood library facilities in Brooklyn, New York, that provide free access to books, digital resources, educational programs, and community services.
-
E.
Yonkers Public Library
Yonkers Public Library is the main public library system serving the city of Yonkers, New York, providing community access to books, digital resources, and educational programs.
- F. None of above. chosen
Statements (29)
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: Union Square Branch Description of subject: The Union Square Branch is a segment of Boston's MBTA Green Line light rail system that extends service to the Union Square area of Somerville.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.