IRT Lexington Avenue Line trunk in Manhattan
E134563
The IRT Lexington Avenue Line trunk in Manhattan is a major New York City Subway corridor running along the East Side of Manhattan, carrying the 4, 5, and 6 services and serving as one of the system’s busiest and most important north–south routes.
All labels observed (7)
How this entity was disambiguated
This entity first appeared as the object of triple T1180090 — 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: IRT Lexington Avenue Line trunk in Manhattan Context triple: [Pelham Line, partOf, IRT Lexington Avenue Line trunk in Manhattan]
-
A.
Eighth Avenue Line in Manhattan
The Eighth Avenue Line in Manhattan is a major New York City Subway trunk line running under Eighth Avenue, carrying several IND services through Midtown and Upper Manhattan.
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B.
Broadway Line in Manhattan
The Broadway Line in Manhattan is a major New York City Subway trunk line running under Broadway and serving as a key north–south corridor for multiple routes, including the W train.
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C.
New Lots Line
The New Lots Line is a New York City Subway line in Brooklyn that serves the easternmost portion of the IRT system, terminating at New Lots Avenue.
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D.
Lenox Avenue Line
The Lenox Avenue Line is a major New York City Subway route in Harlem, Manhattan, primarily served by IRT trains running beneath Lenox Avenue.
-
E.
Manhattan Railway elevated lines
The Manhattan Railway elevated lines were a network of elevated rapid transit railways in Manhattan that formed a key part of New York City's early mass transit system before the expansion of the subway.
- 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: IRT Lexington Avenue Line trunk in Manhattan Target entity description: The IRT Lexington Avenue Line trunk in Manhattan is a major New York City Subway corridor running along the East Side of Manhattan, carrying the 4, 5, and 6 services and serving as one of the system’s busiest and most important north–south routes.
-
A.
Eighth Avenue Line in Manhattan
The Eighth Avenue Line in Manhattan is a major New York City Subway trunk line running under Eighth Avenue, carrying several IND services through Midtown and Upper Manhattan.
-
B.
Broadway Line in Manhattan
The Broadway Line in Manhattan is a major New York City Subway trunk line running under Broadway and serving as a key north–south corridor for multiple routes, including the W train.
-
C.
New Lots Line
The New Lots Line is a New York City Subway line in Brooklyn that serves the easternmost portion of the IRT system, terminating at New Lots Avenue.
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D.
Lenox Avenue Line
The Lenox Avenue Line is a major New York City Subway route in Harlem, Manhattan, primarily served by IRT trains running beneath Lenox Avenue.
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E.
Manhattan Railway elevated lines
The Manhattan Railway elevated lines were a network of elevated rapid transit railways in Manhattan that formed a key part of New York City's early mass transit system before the expansion of the subway.
- F. None of above. chosen
Statements (59)
| Predicate | Object |
|---|---|
| instanceOf |
New York City Subway trunk line
ⓘ
rapid transit corridor ⓘ |
| character | underground ⓘ |
| connectsWith |
BMT Broadway Line
ⓘ
surface form:
BMT Broadway Line at Canal Street (indirect complex)
BMT Broadway Line at Union Square–14th Street ⓘ IND Queens Boulevard Line at Lexington Avenue–53rd Street (via transfer) ⓘ 86th Street (Second Avenue Line) ⓘ
surface form:
IND Second Avenue Line at 86th Street (via crosstown buses and local connections; not a direct physical transfer)
Times Square–42nd Street subway station ⓘ
surface form:
IRT Broadway–Seventh Avenue Line at 42nd Street–Grand Central / Times Square complex (via shuttle and passageways)
Flushing Line ⓘ
surface form:
IRT Flushing Line at Grand Central–42nd Street
|
| direction | north–south ⓘ |
| division | IRT Division ⓘ |
| electrification | 600 V DC third rail ⓘ |
| fareControl | unified with rest of New York City Subway system ⓘ |
| follows |
Fourth Avenue
ⓘ
surface form:
Fourth Avenue (historic alignment name)
Lexington Avenue ⓘ Park Avenue ⓘ |
| hasServicePattern | local and express tracks ⓘ |
| hasStation |
103rd Street station (IRT Lexington Avenue Line)
ⓘ
110th Street station (IRT Lexington Avenue Line) ⓘ 116th Street station (IRT Lexington Avenue Line) ⓘ 125th Street station (Lenox Avenue Line) ⓘ
surface form:
125th Street station (IRT Lexington Avenue Line)
14th Street–Union Square station ⓘ
surface form:
14th Street–Union Square station (IRT Lexington Avenue Line platforms)
23rd Street station (Lexington Avenue Line) ⓘ
surface form:
23rd Street station (IRT Lexington Avenue Line)
28th Street station (IRT Lexington Avenue Line) ⓘ 33rd Street station (IRT Lexington Avenue Line) ⓘ 51st Street station (IRT Lexington Avenue Line) ⓘ Lexington Avenue–59th Street station ⓘ
surface form:
59th Street station (IRT Lexington Avenue Line)
68th Street–Hunter College station ⓘ 77th Street station (IRT Lexington Avenue Line) ⓘ 86th Street (IRT Lexington Avenue Line) ⓘ
surface form:
86th Street station (IRT Lexington Avenue Line)
96th Street station (IRT Lexington Avenue Line) ⓘ Astor Place subway station ⓘ
surface form:
Astor Place station
Bleecker Street station ⓘ Brooklyn Bridge–City Hall subway station ⓘ
surface form:
Brooklyn Bridge–City Hall station
Canal Street (IRT Lexington Avenue Line) ⓘ
surface form:
Canal Street station (IRT Lexington Avenue Line)
Grand Central–42nd Street station ⓘ
surface form:
Grand Central–42nd Street station (IRT Lexington Avenue Line platforms)
Spring Street station (IRT Lexington Avenue Line) ⓘ |
| historicalOperator | Interborough Rapid Transit Company ⓘ |
| isAmong | busiest subway corridors in North America ⓘ |
| isBusiest | busiest IRT trunk line in New York City Subway ⓘ |
| locatedIn |
Manhattan
ⓘ
New York City ⓘ
surface form:
New York
New York City ⓘ United States of America ⓘ
surface form:
United States
|
| opened | 1918 ⓘ |
| operator |
Metropolitan Transportation Authority
ⓘ
New York City Transit Authority ⓘ |
| owner |
New York City
ⓘ
surface form:
City of New York
|
| partOf |
Lexington Avenue Line
ⓘ
surface form:
IRT Lexington Avenue Line
|
| servedBy |
4 service
ⓘ
5 service ⓘ 6 service ⓘ |
| servesArea |
East Harlem
ⓘ
East Side of Manhattan ⓘ Midtown Manhattan ⓘ Upper East Side ⓘ |
| system | New York City Subway ⓘ |
| trackGauge | 1,435 mm standard gauge ⓘ |
| usesRollingStock | 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: IRT Lexington Avenue Line trunk in Manhattan Description of subject: The IRT Lexington Avenue Line trunk in Manhattan is a major New York City Subway corridor running along the East Side of Manhattan, carrying the 4, 5, and 6 services and serving as one of the system’s busiest and most important north–south routes.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
IRT Lexington Avenue Line – Woodlawn branch
this entity surface form:
IRT Lexington Avenue Line express tracks
New York City Subway Brooklyn Bridge–City Hall station (4,5,6)
→
category
→
IRT Lexington Avenue Line trunk in Manhattan
ⓘ
subject surface form:
Brooklyn Bridge–City Hall station (4,5,6)
this entity surface form:
IRT Lexington Avenue Line stations
Brooklyn Bridge–City Hall subway station
→
servesLine
→
IRT Lexington Avenue Line trunk in Manhattan
ⓘ
this entity surface form:
IRT Lexington Avenue Line express service
this entity surface form:
IRT Lexington Avenue Line platforms
Broadway–Lexington Avenue route (historical planning name)
→
relatedTo
→
IRT Lexington Avenue Line trunk in Manhattan
ⓘ
this entity surface form:
Lexington Avenue Line (later IRT alignment, conceptually distinct)