50th Street (Eighth Avenue Line)
E190123
50th Street (Eighth Avenue Line) is a New York City Subway station in Midtown Manhattan serving the IND Eighth Avenue Line.
All labels observed (5)
How this entity was disambiguated
This entity first appeared as the object of triple T1684851 — 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: 50th Street (Eighth Avenue Line) Context triple: [7th Avenue (53rd Street Line), adjacentStation, 50th Street (Eighth Avenue Line)]
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A.
Eighth Avenue Line
The Eighth Avenue Line is a major New York City Subway trunk line in Manhattan, primarily served by the A, C, and E trains and known as the system’s first fully independent subway route.
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B.
86th Street
86th Street is a major local subway station on Manhattan’s Upper East Side serving the Lexington Avenue Line.
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C.
5th Street
5th Street is a street located next to Independence Square, likely serving as one of the main thoroughfares in that urban area.
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D.
168th Street
168th Street is a New York City Subway station in Manhattan that serves as the northern terminal for the IND Eighth Avenue Line’s C train.
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E.
7th Avenue (53rd Street Line)
7th Avenue (53rd Street Line) is a New York City Subway station in Manhattan located at the intersection of Seventh Avenue and 53rd Street, serving multiple lines on the IND Queens Boulevard Line.
- 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: 50th Street (Eighth Avenue Line) Target entity description: 50th Street (Eighth Avenue Line) is a New York City Subway station in Midtown Manhattan serving the IND Eighth Avenue Line.
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A.
Eighth Avenue Line
The Eighth Avenue Line is a major New York City Subway trunk line in Manhattan, primarily served by the A, C, and E trains and known as the system’s first fully independent subway route.
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B.
86th Street
86th Street is a major local subway station on Manhattan’s Upper East Side serving the Lexington Avenue Line.
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C.
5th Street
5th Street is a street located next to Independence Square, likely serving as one of the main thoroughfares in that urban area.
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D.
168th Street
168th Street is a New York City Subway station in Manhattan that serves as the northern terminal for the IND Eighth Avenue Line’s C train.
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E.
7th Avenue (53rd Street Line)
7th Avenue (53rd Street Line) is a New York City Subway station in Manhattan located at the intersection of Seventh Avenue and 53rd Street, serving multiple lines on the IND Queens Boulevard Line.
- F. None of above. chosen
Statements (47)
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: 50th Street (Eighth Avenue Line) Description of subject: 50th Street (Eighth Avenue Line) is a New York City Subway station in Midtown Manhattan serving the IND Eighth Avenue Line.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: 50th Street (Eighth Avenue Line)
linked to: 50th Street (Eighth Avenue Line)
linked to: 50th Street (Eighth Avenue Line)
59th Street–Columbus Circle
→
hasAdjacentStation
→
50th Street (C,E line vicinity for A,C,D service patterns historically)
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linked to: 50th Street (Eighth Avenue Line)