IRT East Side Lines
E83466
The IRT East Side Lines are a set of New York City Subway routes running along Manhattan’s East Side, primarily serving the Lexington Avenue corridor in the A Division (former IRT system).
All labels observed (1)
| Label | Occurrences |
|---|---|
| IRT East Side Lines canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T678405 — 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 East Side Lines Context triple: [6 train, networkSection, IRT East Side Lines]
-
A.
Valley Lines
Valley Lines is a suburban rail network serving Cardiff and the surrounding South Wales Valleys.
-
B.
Pink Line
The Pink Line is a rapid transit route in Chicago's "L" system that runs between the Loop and the city's West Side neighborhoods.
-
C.
T Line
The T Line is a streetcar-style light rail route within the Sound Transit Link system serving Tacoma, Washington.
-
D.
Purple Line
The Purple Line is a rapid transit route in Chicago's 'L' system that primarily serves the city's northern suburbs and connects them to the North Side of Chicago.
-
E.
Cross-City Line
The Cross-City Line is a suburban railway route in the West Midlands of England that runs through Birmingham, connecting Lichfield in the north to Redditch and Bromsgrove in the south.
- 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 East Side Lines Target entity description: The IRT East Side Lines are a set of New York City Subway routes running along Manhattan’s East Side, primarily serving the Lexington Avenue corridor in the A Division (former IRT system).
-
A.
Valley Lines
Valley Lines is a suburban rail network serving Cardiff and the surrounding South Wales Valleys.
-
B.
Pink Line
The Pink Line is a rapid transit route in Chicago's "L" system that runs between the Loop and the city's West Side neighborhoods.
-
C.
T Line
The T Line is a streetcar-style light rail route within the Sound Transit Link system serving Tacoma, Washington.
-
D.
Purple Line
The Purple Line is a rapid transit route in Chicago's 'L' system that primarily serves the city's northern suburbs and connects them to the North Side of Chicago.
-
E.
Cross-City Line
The Cross-City Line is a suburban railway route in the West Midlands of England that runs through Birmingham, connecting Lichfield in the north to Redditch and Bromsgrove in the south.
- F. None of above. chosen
Statements (46)
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 East Side Lines Description of subject: The IRT East Side Lines are a set of New York City Subway routes running along Manhattan’s East Side, primarily serving the Lexington Avenue corridor in the A Division (former IRT system).
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.