Harlem (O'Hare branch) station
E167839
Harlem (O'Hare branch) station is a Chicago Transit Authority rapid transit stop on the Blue Line serving the city's Northwest Side near the Kennedy Expressway.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Harlem (O'Hare branch) | 1 |
| Harlem (O'Hare branch) station canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T779176 — 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: Harlem (O'Hare branch) station Context triple: [Blue Line (CTA), hasStation, Harlem (O'Hare branch) station]
-
A.
LaSalle/Van Buren station
LaSalle/Van Buren station is a Chicago 'L' rapid transit stop in the Loop that serves multiple lines and connects to the nearby LaSalle Street commuter rail station.
-
B.
Park Ridge station
Park Ridge station is a commuter rail stop in Park Ridge, Illinois, serving Metra trains that connect the suburb with Chicago and surrounding areas.
-
C.
Dempster–Skokie station
Dempster–Skokie station is a Chicago Transit Authority rapid transit station in Skokie, Illinois, serving as the northern endpoint of the Yellow Line and a key park-and-ride hub for commuters.
-
D.
UIC–Halsted station
UIC–Halsted station is a Chicago Transit Authority rapid transit stop on the Blue Line serving the University of Illinois at Chicago campus and the Near West Side neighborhood.
-
E.
Quincy station (CTA)
Quincy station (CTA) is a historic elevated rapid transit stop in downtown Chicago’s Loop, known for its preserved 19th-century architecture and service to multiple ‘L’ lines including the Orange Line.
- 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: Harlem (O'Hare branch) station Target entity description: Harlem (O'Hare branch) station is a Chicago Transit Authority rapid transit stop on the Blue Line serving the city's Northwest Side near the Kennedy Expressway.
-
A.
LaSalle/Van Buren station
LaSalle/Van Buren station is a Chicago 'L' rapid transit stop in the Loop that serves multiple lines and connects to the nearby LaSalle Street commuter rail station.
-
B.
Park Ridge station
Park Ridge station is a commuter rail stop in Park Ridge, Illinois, serving Metra trains that connect the suburb with Chicago and surrounding areas.
-
C.
Dempster–Skokie station
Dempster–Skokie station is a Chicago Transit Authority rapid transit station in Skokie, Illinois, serving as the northern endpoint of the Yellow Line and a key park-and-ride hub for commuters.
-
D.
UIC–Halsted station
UIC–Halsted station is a Chicago Transit Authority rapid transit stop on the Blue Line serving the University of Illinois at Chicago campus and the Near West Side neighborhood.
-
E.
Quincy station (CTA)
Quincy station (CTA) is a historic elevated rapid transit stop in downtown Chicago’s Loop, known for its preserved 19th-century architecture and service to multiple ‘L’ lines including the Orange Line.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
Chicago 'L' station
ⓘ
rapid transit station ⓘ |
| category |
CTA Blue Line stations
ⓘ
Railway stations in Chicago ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| fareControlLocation | overhead mezzanine ⓘ |
| fareSystem | Ventra ⓘ |
| hasAccessibility | accessible ⓘ |
| hasConnection | CTA bus services ⓘ |
| hasPlatformType | island platform ⓘ |
| hasService | 24-hour Blue Line service ⓘ |
| hasStructureType | expressway median station ⓘ |
| locatedInArea | Northwest Side of Chicago ⓘ |
| locatedInCity |
City of Chicago
ⓘ
surface form:
Chicago
|
| locatedNear | Kennedy Expressway ⓘ |
| namedAfter | Harlem Avenue ⓘ |
| numberOfPlatforms | 1 ⓘ |
| numberOfTracks | 2 ⓘ |
| operatedBy | Chicago Transit Authority ⓘ |
| owner | Chicago Transit Authority ⓘ |
| partOfLine |
CTA Blue Line
ⓘ
surface form:
Blue Line (CTA)
|
| serves | O'Hare branch of the Blue Line ⓘ |
| servesDirection |
toward Forest Park
ⓘ
toward O'Hare ⓘ |
| state | Illinois ⓘ |
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: Harlem (O'Hare branch) station Description of subject: Harlem (O'Hare branch) station is a Chicago Transit Authority rapid transit stop on the Blue Line serving the city's Northwest Side near the Kennedy Expressway.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Blue Line (CTA)
this entity surface form:
Harlem (O'Hare branch)