Dearborn Street subway
E92000
The Dearborn Street subway is an underground rapid transit tunnel in downtown Chicago that carries Chicago Transit Authority trains beneath Dearborn Street.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Dearborn Street subway canonical | 5 |
| Dearborn Street Subway | 2 |
| Dearborn Subway alignment | 1 |
| Dearborn subway | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T779187 — 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: Dearborn Street subway Context triple: [Blue Line (CTA), passesThrough, Dearborn Street subway]
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A.
Market Street subway
The Market Street subway is a major underground transit corridor in San Francisco that carries both BART and Muni Metro trains beneath Market Street through the city’s downtown.
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B.
Second Avenue Subway
The Second Avenue Subway is a New York City Subway line on Manhattan’s East Side, built to relieve congestion on the Lexington Avenue Line and long envisioned as a major north–south transit corridor.
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C.
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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D.
Van Buren Street Metra station
Van Buren Street Metra station is a downtown Chicago commuter rail station on the Metra Electric District line, located near Grant Park and serving the city's Loop business district.
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E.
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.
- 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: Dearborn Street subway Target entity description: The Dearborn Street subway is an underground rapid transit tunnel in downtown Chicago that carries Chicago Transit Authority trains beneath Dearborn Street.
-
A.
Market Street subway
The Market Street subway is a major underground transit corridor in San Francisco that carries both BART and Muni Metro trains beneath Market Street through the city’s downtown.
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B.
Second Avenue Subway
The Second Avenue Subway is a New York City Subway line on Manhattan’s East Side, built to relieve congestion on the Lexington Avenue Line and long envisioned as a major north–south transit corridor.
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C.
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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D.
Van Buren Street Metra station
Van Buren Street Metra station is a downtown Chicago commuter rail station on the Metra Electric District line, located near Grant Park and serving the city's Loop business district.
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E.
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.
- F. None of above. chosen
Statements (35)
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: Dearborn Street subway Description of subject: The Dearborn Street subway is an underground rapid transit tunnel in downtown Chicago that carries Chicago Transit Authority trains beneath Dearborn Street.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Blue Line (CTA)
this entity surface form:
Dearborn subway
this entity surface form:
Dearborn Street Subway
this entity surface form:
Dearborn Subway alignment
subject surface form:
Washington (CTA Blue Line station)
this entity surface form:
Dearborn Street Subway