A Division (New York City Subway)
E1047087
The A Division of the New York City Subway is the group of numbered subway lines originally built to smaller IRT specifications, encompassing routes such as those on the West Side of Manhattan.
All labels observed (3)
| Label | Occurrences |
|---|---|
| A Division (IRT) | 1 |
| A Division (IRT) of the New York City Subway | 1 |
| A Division (New York City Subway) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13532098 — 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 Division (New York City Subway) Context triple: [IRT West Side Lines, partOf, A Division (New York City Subway)]
-
A.
B Division (New York City Subway)
B Division (New York City Subway) is the portion of New York City's subway system that operates the wider, lettered routes—primarily in Manhattan, Brooklyn, and Queens—using larger cars and distinct infrastructure from the numbered-line A Division.
-
B.
BMT Division
BMT Division is a specialized organizational unit focused on bone marrow transplantation and related hematologic treatments.
-
C.
BMT Division
The BMT Division is a former Brooklyn–Manhattan Transit-operated section of the New York City Subway system, encompassing lines originally built and run by the BMT before unification.
-
D.
MTA New York City Transit Subdivision B
MTA New York City Transit Subdivision B is the division of New York City's subway system that operates the lettered lines, including services like the A, B, D, F, N, Q, and R trains.
-
E.
NYC Transit Manhattan Division
NYC Transit Manhattan Division is the New York City Transit subdivision responsible for operating Manhattan’s local and select bus routes and related surface transit services.
- 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 Division (New York City Subway) Target entity description: The A Division of the New York City Subway is the group of numbered subway lines originally built to smaller IRT specifications, encompassing routes such as those on the West Side of Manhattan.
-
A.
B Division (New York City Subway)
B Division (New York City Subway) is the portion of New York City's subway system that operates the wider, lettered routes—primarily in Manhattan, Brooklyn, and Queens—using larger cars and distinct infrastructure from the numbered-line A Division.
-
B.
BMT Division
The BMT Division is a former Brooklyn–Manhattan Transit-operated section of the New York City Subway system, encompassing lines originally built and run by the BMT before unification.
-
C.
BMT Division
BMT Division is a specialized organizational unit focused on bone marrow transplantation and related hematologic treatments.
-
D.
MTA New York City Transit Subdivision B
MTA New York City Transit Subdivision B is the division of New York City's subway system that operates the lettered lines, including services like the A, B, D, F, N, Q, and R trains.
-
E.
NYC Transit Manhattan Division
NYC Transit Manhattan Division is the New York City Transit subdivision responsible for operating Manhattan’s local and select bus routes and related surface transit services.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
division of the New York City Subway
ⓘ
rapid transit division ⓘ |
| alsoKnownAs | IRT Division NERFINISHED ⓘ |
| builtToSpecificationOf | Interborough Rapid Transit Company NERFINISHED ⓘ |
| carLength |
51 feet
ⓘ
approximately 51 feet ⓘ |
| carWidth | approximately 8.6 feet ⓘ |
| compatibleWith | IRT loading gauge NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| hasFareControlSystem |
MetroCard
NERFINISHED
ⓘ
OMNY NERFINISHED ⓘ |
| hasInfrastructureType |
elevated lines
ⓘ
open-cut lines ⓘ underground lines ⓘ |
| hasLoadingGauge | smaller than B Division loading gauge ⓘ |
| hasNotableCorridor |
IRT Broadway–Seventh Avenue Line
NERFINISHED
ⓘ
IRT Flushing Line NERFINISHED ⓘ IRT Lexington Avenue Line NERFINISHED ⓘ |
| hasPlatformLengthStandard | IRT-standard platform length ⓘ |
| hasRollingStockFamily |
R142 subway car
NERFINISHED
ⓘ
R142A subway car NERFINISHED ⓘ R188 subway car NERFINISHED ⓘ R62 subway car NERFINISHED ⓘ R62A subway car NERFINISHED ⓘ |
| hasServicePattern |
express services
ⓘ
local services ⓘ |
| hasSignalSystem | wayside block signals ⓘ |
| historicallyOriginatedAs | Interborough Rapid Transit Company system ⓘ |
| includesService |
1 (New York City Subway service)
NERFINISHED
ⓘ
2 (New York City Subway service) NERFINISHED ⓘ 3 (New York City Subway service) NERFINISHED ⓘ 4 (New York City Subway service) NERFINISHED ⓘ 42nd Street Shuttle (New York City Subway service) NERFINISHED ⓘ 5 (New York City Subway service) NERFINISHED ⓘ 6 (New York City Subway service) NERFINISHED ⓘ 7 (New York City Subway service) NERFINISHED ⓘ |
| locatedIn |
New York City
ⓘ
New York State NERFINISHED ⓘ |
| notCompatibleWith | B Division rolling stock ⓘ |
| operatedBy |
Metropolitan Transportation Authority
ⓘ
New York City Transit Authority NERFINISHED ⓘ |
| partOf | New York City Subway ⓘ |
| servesBorough |
Bronx
NERFINISHED
ⓘ
Brooklyn NERFINISHED ⓘ Manhattan NERFINISHED ⓘ Queens NERFINISHED ⓘ |
| trackGauge | standard gauge ⓘ |
| usesCarProfile | narrow IRT car profile ⓘ |
| usesLineDesignationType | numbered lines ⓘ |
| usesSignageColorScheme | route-colored bullets with white numbers ⓘ |
| usesTrainControl | automatic train operation on 7 service (CBTC) ⓘ |
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 Division (New York City Subway) Description of subject: The A Division of the New York City Subway is the group of numbered subway lines originally built to smaller IRT specifications, encompassing routes such as those on the West Side of Manhattan.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
A Division (IRT)
New York City Subway IRT Broadway–Seventh Avenue Line
→
partOf
→
A Division (New York City Subway)
ⓘ
subject surface form:
IRT Broadway–Seventh Avenue Line
this entity surface form:
A Division (IRT) of the New York City Subway