IRT Ninth Avenue Line
E1363454
UNEXPLORED
The IRT Ninth Avenue Line was New York City's first elevated railway, a pioneering rapid transit line that once ran above Manhattan's Ninth Avenue before being dismantled in the mid-20th century.
All labels observed (2)
| Label | Occurrences |
|---|---|
| IRT Ninth Avenue Line canonical | 2 |
| IRT Ninth Avenue Line (elevated) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T19191604 — 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 Ninth Avenue Line Context triple: [Ninth Avenue Line, alsoKnownAs, IRT Ninth 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.
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.
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C.
IRT Nostrand Avenue Line extension
The IRT Nostrand Avenue Line extension was a New York City Subway expansion project that extended service deeper into Brooklyn along Nostrand Avenue beyond its original terminus.
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D.
IRT East Bronx lines
The IRT East Bronx lines are a group of New York City Subway routes in the Bronx operated by the Interborough Rapid Transit division, serving neighborhoods in the eastern part of the borough.
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E.
IND Eighth Avenue Line and IND Sixth Avenue Line
The IND Eighth Avenue Line and IND Sixth Avenue Line are two major New York City Subway trunk lines in Manhattan that run roughly north–south on their respective avenues and share key transfer points such as West Fourth Street–Washington Square.
- 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 Ninth Avenue Line Target entity description: The IRT Ninth Avenue Line was New York City's first elevated railway, a pioneering rapid transit line that once ran above Manhattan's Ninth Avenue before being dismantled in the mid-20th century.
-
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.
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.
-
C.
IRT Nostrand Avenue Line extension
The IRT Nostrand Avenue Line extension was a New York City Subway expansion project that extended service deeper into Brooklyn along Nostrand Avenue beyond its original terminus.
-
D.
IRT East Bronx lines
The IRT East Bronx lines are a group of New York City Subway routes in the Bronx operated by the Interborough Rapid Transit division, serving neighborhoods in the eastern part of the borough.
-
E.
IND Eighth Avenue Line and IND Sixth Avenue Line
The IND Eighth Avenue Line and IND Sixth Avenue Line are two major New York City Subway trunk lines in Manhattan that run roughly north–south on their respective avenues and share key transfer points such as West Fourth Street–Washington Square.
- F. None of above. chosen
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
Interborough Rapid Transit legacy lines
→
historicallyIncludesLine
→
IRT Ninth Avenue Line (elevated)
ⓘ
linked to: IRT Ninth Avenue Line