Third Avenue Line
E460022
The Third Avenue Line was a major elevated railway in Manhattan that once formed a key part of New York City's early rapid transit system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Third Avenue Line canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4604313 — 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: Third Avenue Line Context triple: [Manhattan Railway elevated lines, mainLine, Third Avenue Line]
-
A.
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.
-
B.
Fourth Avenue Line
The Fourth Avenue Line is a major New York City Subway trunk line in Brooklyn that carries several services, including the N train, along a north–south corridor.
-
C.
Jerome Avenue Line
The Jerome Avenue Line is a New York City Subway route in the Bronx, primarily served by the 4 train and running along Jerome Avenue from the Yankee Stadium area toward the northern end of the borough.
-
D.
Second Avenue Line
The Second Avenue Line is a New York City Subway service planned and built to run primarily beneath Manhattan’s Second Avenue as part of a long-delayed effort to expand the city’s rapid transit network.
-
E.
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.
- 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: Third Avenue Line Target entity description: The Third Avenue Line was a major elevated railway in Manhattan that once formed a key part of New York City's early rapid transit system.
-
A.
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.
-
B.
Fourth Avenue Line
The Fourth Avenue Line is a major New York City Subway trunk line in Brooklyn that carries several services, including the N train, along a north–south corridor.
-
C.
Jerome Avenue Line
The Jerome Avenue Line is a New York City Subway route in the Bronx, primarily served by the 4 train and running along Jerome Avenue from the Yankee Stadium area toward the northern end of the borough.
-
D.
Second Avenue Line
The Second Avenue Line is a New York City Subway service planned and built to run primarily beneath Manhattan’s Second Avenue as part of a long-delayed effort to expand the city’s rapid transit network.
-
E.
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.
- F. None of above. chosen
Statements (38)
| Predicate | Object |
|---|---|
| instanceOf |
defunct railway line
ⓘ
elevated railway line ⓘ public transit line ⓘ |
| category |
Defunct New York City transit lines
ⓘ
Elevated railways in New York City ⓘ Rail infrastructure in Manhattan ⓘ |
| constructionType | elevated steel structure ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| electrification | third rail ⓘ |
| fareSystem | integrated with New York City transit fares ⓘ |
| historicalSignificance |
major component of early New York City rapid transit
ⓘ
one of Manhattan’s principal elevated lines ⓘ |
| impact | facilitated north–south travel in Manhattan ⓘ |
| infrastructureType | railway viaduct ⓘ |
| locatedIn |
Manhattan
ⓘ
New York City ⓘ New York State ⓘ United States ⓘ
linked to:
United States of America
|
| notableFeature | elevated structure above Third Avenue ⓘ |
| operatedBy |
Interborough Rapid Transit Company
ⓘ
New York City Transit Authority ⓘ |
| operatedInArea |
Third Avenue, Manhattan
ⓘ
linked to:
Third Avenue
|
| operatedWith | multiple-unit electric trains ⓘ |
| originallyBuiltBy | Manhattan Railway Company ⓘ |
| partOf |
Manhattan elevated railway system
ⓘ
linked to:
Manhattan Railway elevated lines
New York City early rapid transit system ⓘ |
| platformType | elevated side platforms ⓘ |
| primaryStreetFollowed | Third Avenue ⓘ |
| replacedBy | subway services in Manhattan ⓘ |
| servedBorough |
Manhattan
ⓘ
The Bronx ⓘ |
| servedFunction |
commuter transport
ⓘ
urban mass transit ⓘ |
| status |
demolished
ⓘ
no longer in operation ⓘ |
| trackGauge | standard gauge ⓘ |
| transitType | rapid transit ⓘ |
| transportMode | rail ⓘ |
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: Third Avenue Line Description of subject: The Third Avenue Line was a major elevated railway in Manhattan that once formed a key part of New York City's early rapid transit system.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.