Brooklyn IRT lines
E356218
The Brooklyn IRT lines are a group of New York City Subway routes in Brooklyn that were originally built and operated by the Interborough Rapid Transit Company as part of its early rapid transit network.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Brooklyn IRT lines canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3046702 — 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: Brooklyn IRT lines Context triple: [IRT East Side Lines, connectsTo, Brooklyn IRT lines]
-
A.
BMT Broadway Line
The BMT Broadway Line is a major New York City Subway trunk line in Manhattan, carrying N, Q, R, and W trains through Midtown and Lower Manhattan via Broadway.
-
B.
BMT Fourth Avenue Line
The BMT Fourth Avenue Line is a major New York City Subway trunk line in Brooklyn, running beneath Fourth Avenue and serving as a key corridor for multiple services.
-
C.
BMT Canarsie Line
The BMT Canarsie Line is a New York City Subway rapid transit line in Brooklyn and Manhattan, best known for being served by the L train and running crosstown under 14th Street.
-
D.
BMT Nassau Street Line
The BMT Nassau Street Line is a New York City Subway line in Lower Manhattan that primarily carries J and Z trains through the Financial District.
-
E.
IND Crosstown Line and IRT Flushing Line
The IND Crosstown Line and IRT Flushing Line are two New York City Subway lines, one providing crosstown service in Brooklyn and Queens and the other operating the 7 train between Queens and Manhattan.
- 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: Brooklyn IRT lines Target entity description: The Brooklyn IRT lines are a group of New York City Subway routes in Brooklyn that were originally built and operated by the Interborough Rapid Transit Company as part of its early rapid transit network.
-
A.
BMT Broadway Line
The BMT Broadway Line is a major New York City Subway trunk line in Manhattan, carrying N, Q, R, and W trains through Midtown and Lower Manhattan via Broadway.
-
B.
BMT Fourth Avenue Line
The BMT Fourth Avenue Line is a major New York City Subway trunk line in Brooklyn, running beneath Fourth Avenue and serving as a key corridor for multiple services.
-
C.
BMT Canarsie Line
The BMT Canarsie Line is a New York City Subway rapid transit line in Brooklyn and Manhattan, best known for being served by the L train and running crosstown under 14th Street.
-
D.
BMT Nassau Street Line
The BMT Nassau Street Line is a New York City Subway line in Lower Manhattan that primarily carries J and Z trains through the Financial District.
-
E.
IND Crosstown Line and IRT Flushing Line
The IND Crosstown Line and IRT Flushing Line are two New York City Subway lines, one providing crosstown service in Brooklyn and Queens and the other operating the 7 train between Queens and Manhattan.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
New York City Subway service group
ⓘ
rapid transit line group ⓘ |
| connectsTo | Manhattan IRT lines ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| currentOperator | New York City Transit Authority ⓘ |
| electrification | third rail ⓘ |
| fareSystem | Metropolitan Transportation Authority fare system ⓘ |
| hasService |
IRT Broadway–Seventh Avenue Line Brooklyn services
ⓘ
IRT Eastern Parkway Line services ⓘ
linked to:
Eastern Parkway Line
IRT New Lots Line services ⓘ
linked to:
New Lots Line
IRT Nostrand Avenue Line services ⓘ |
| historicalOperator | Interborough Rapid Transit Company ⓘ |
| locatedIn |
Brooklyn
ⓘ
New York City ⓘ |
| modeOfTransport | subway ⓘ |
| networkMapColorFamily | red services (numbered lines) ⓘ |
| originalOperator | Interborough Rapid Transit Company ⓘ |
| owner |
City of New York
ⓘ
linked to:
New York City
|
| partOf |
Interborough Rapid Transit Company network
ⓘ
linked to:
Interborough Rapid Transit Company
New York City Subway ⓘ |
| partOfDivision |
A Division (IRT)
ⓘ
linked to:
A Division (New York City Subway)
|
| servesBorough |
Brooklyn
ⓘ
Manhattan ⓘ |
| systemStyle | IRT ⓘ |
| trackGauge | standard gauge ⓘ |
| usesInfrastructure |
IRT Broadway–Seventh Avenue Line (Brooklyn portion)
ⓘ
IRT Eastern Parkway Line ⓘ
linked to:
Eastern Parkway Line
IRT New Lots Line ⓘ
linked to:
New Lots Line
IRT Nostrand Avenue Line ⓘ
linked to:
Nostrand Avenue Line
|
| usesRollingStockType | A Division subway cars ⓘ |
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: Brooklyn IRT lines Description of subject: The Brooklyn IRT lines are a group of New York City Subway routes in Brooklyn that were originally built and operated by the Interborough Rapid Transit Company as part of its early rapid transit network.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.