A (New York City Subway service)
E537048
The A (New York City Subway service) is a major rapid transit line in New York City that runs primarily along the Eighth Avenue Corridor in Manhattan and extends into Brooklyn and Queens, including service to JFK Airport and the Rockaways.
All labels observed (2)
| Label | Occurrences |
|---|---|
| A (New York City Subway service) canonical | 3 |
| New York City Subway A train | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T5610510 — 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: A (New York City Subway service) Context triple: [Rockaway Park Shuttle, connectsWith, A (New York City Subway service)]
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A.
S (New York City Subway service)
The S (New York City Subway service) is a designation used for the system’s shuttle trains, which provide short, point-to-point connections between specific stations.
-
B.
D (New York City Subway service)
The D is a New York City Subway rapid transit service that runs primarily along the IND Sixth Avenue Line in Manhattan, connecting the Bronx and Brooklyn via express and local routes.
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C.
Q (New York City Subway service)
The Q is a New York City Subway service that runs as a Broadway Express in Manhattan and via the Brighton Line in Brooklyn, connecting neighborhoods like Coney Island to Midtown and the Upper East Side.
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D.
G (New York City Subway service)
The G is a New York City Subway service that runs entirely within Brooklyn and Queens, connecting neighborhoods without entering Manhattan.
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E.
R (New York City Subway service)
The R (New York City Subway service) is a local rapid transit line in New York City that runs primarily along the BMT Broadway Line in Manhattan and the BMT Fourth Avenue Line in Brooklyn, connecting Queens, Manhattan, and Brooklyn.
- 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: A (New York City Subway service) Target entity description: The A (New York City Subway service) is a major rapid transit line in New York City that runs primarily along the Eighth Avenue Corridor in Manhattan and extends into Brooklyn and Queens, including service to JFK Airport and the Rockaways.
-
A.
S (New York City Subway service)
The S (New York City Subway service) is a designation used for the system’s shuttle trains, which provide short, point-to-point connections between specific stations.
-
B.
D (New York City Subway service)
The D is a New York City Subway rapid transit service that runs primarily along the IND Sixth Avenue Line in Manhattan, connecting the Bronx and Brooklyn via express and local routes.
-
C.
Q (New York City Subway service)
The Q is a New York City Subway service that runs as a Broadway Express in Manhattan and via the Brighton Line in Brooklyn, connecting neighborhoods like Coney Island to Midtown and the Upper East Side.
-
D.
G (New York City Subway service)
The G is a New York City Subway service that runs entirely within Brooklyn and Queens, connecting neighborhoods without entering Manhattan.
-
E.
R (New York City Subway service)
The R (New York City Subway service) is a local rapid transit line in New York City that runs primarily along the BMT Broadway Line in Manhattan and the BMT Fourth Avenue Line in Brooklyn, connecting Queens, Manhattan, and Brooklyn.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
New York City Subway service
ⓘ
rapid transit line ⓘ |
| boroughServed |
Brooklyn
ⓘ
Manhattan ⓘ Queens NERFINISHED ⓘ |
| color | blue ⓘ |
| connectsTo | AirTrain JFK at Howard Beach–JFK Airport NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| division | IND Division ⓘ |
| electrification | 600 V DC third rail ⓘ |
| fareSystem | Metropolitan Transportation Authority fare system ⓘ |
| hasBranch |
Far Rockaway branch
NERFINISHED
ⓘ
Lefferts Boulevard branch NERFINISHED ⓘ Rockaway Park shuttle branch (partial through service) NERFINISHED ⓘ |
| hasServiceVariant | rush-hour Rockaway Park through trains ⓘ |
| lineLetter | A NERFINISHED ⓘ |
| nightServicePattern |
local in Brooklyn
ⓘ
local in Manhattan ⓘ local in Queens ⓘ |
| notableFeature |
one of the longest routes in the New York City Subway system
ⓘ
provides direct subway access to the Rockaways ⓘ |
| openedWith | IND Eighth Avenue Line initial segment NERFINISHED ⓘ |
| operatedBy |
Metropolitan Transportation Authority
ⓘ
New York City Transit Authority NERFINISHED ⓘ |
| primaryManhattanCorridor | Eighth Avenue NERFINISHED ⓘ |
| region | New York City NERFINISHED ⓘ |
| rollingStockType | IND/BMT compatible subway cars ⓘ |
| routeType | lettered route ⓘ |
| servesAirport | John F. Kennedy International Airport NERFINISHED ⓘ |
| servicePattern |
express in Brooklyn
ⓘ
express in Manhattan ⓘ local in Queens ⓘ |
| serviceStartYear | 1932 ⓘ |
| sharesTrackageWith |
C (New York City Subway service)
NERFINISHED
ⓘ
E (New York City Subway service) NERFINISHED ⓘ Rockaway Park Shuttle (New York City Subway service) NERFINISHED ⓘ |
| system | New York City Subway ⓘ |
| terminalStation |
Far Rockaway–Mott Avenue
NERFINISHED
ⓘ
Inwood–207th Street NERFINISHED ⓘ Ozone Park–Lefferts Boulevard NERFINISHED ⓘ Rockaway Park–Beach 116th Street (limited service) NERFINISHED ⓘ |
| trackGauge | standard gauge ⓘ |
| trunkLine | IND Eighth Avenue Line NERFINISHED ⓘ |
| usesLine |
IND Eighth Avenue Line
NERFINISHED
ⓘ
IND Fulton Street Line NERFINISHED ⓘ IND Rockaway Line NERFINISHED ⓘ IND Rockaway Park Branch NERFINISHED ⓘ Liberty Avenue elevated NERFINISHED ⓘ |
| weekdayService | 24 hours per day ⓘ |
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: A (New York City Subway service) Description of subject: The A (New York City Subway service) is a major rapid transit line in New York City that runs primarily along the Eighth Avenue Corridor in Manhattan and extends into Brooklyn and Queens, including service to JFK Airport and the Rockaways.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
C (New York City Subway service)
this entity surface form:
New York City Subway A train
this entity surface form:
New York City Subway A train