O'Hare station
E367317
O'Hare station is a Chicago Transit Authority Blue Line rapid transit station located at O'Hare International Airport, serving as the primary rail link between the airport and downtown Chicago.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Airport Transit System (O'Hare) | 1 |
| O'Hare | 1 |
| O'Hare branch | 1 |
| O'Hare station canonical | 1 |
| OHare (CTA internal identifier) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3543550 — 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: O'Hare station Context triple: [CTA Blue Line, terminus, O'Hare station]
-
A.
Cermak–McCormick Place station
Cermak–McCormick Place station is a Chicago 'L' rapid transit stop on the Near South Side that provides access to the McCormick Place convention center and surrounding neighborhood.
-
B.
Joliet Station
Joliet Station is a major commuter rail hub in Joliet, Illinois, serving as a key terminus and transfer point for multiple Chicago-area rail lines.
-
C.
Naperville station
Naperville station is a commuter rail station in Naperville, Illinois, serving as a major stop for Metra and Amtrak trains in the western suburbs of Chicago.
-
D.
Harlem (O'Hare branch) station
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.
-
E.
Westmont station
Westmont station is a commuter rail stop in Westmont, Illinois, serving Metra’s BNSF Railway Line between Chicago and its western suburbs.
- 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: O'Hare station Target entity description: O'Hare station is a Chicago Transit Authority Blue Line rapid transit station located at O'Hare International Airport, serving as the primary rail link between the airport and downtown Chicago.
-
A.
Cermak–McCormick Place station
Cermak–McCormick Place station is a Chicago 'L' rapid transit stop on the Near South Side that provides access to the McCormick Place convention center and surrounding neighborhood.
-
B.
Joliet Station
Joliet Station is a major commuter rail hub in Joliet, Illinois, serving as a key terminus and transfer point for multiple Chicago-area rail lines.
-
C.
Naperville station
Naperville station is a commuter rail station in Naperville, Illinois, serving as a major stop for Metra and Amtrak trains in the western suburbs of Chicago.
-
D.
Harlem (O'Hare branch) station
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.
-
E.
Westmont station
Westmont station is a commuter rail stop in Westmont, Illinois, serving Metra’s BNSF Railway Line between Chicago and its western suburbs.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Chicago Transit Authority station
ⓘ
airport railway station ⓘ rapid transit station ⓘ |
| accessible | yes ⓘ |
| cityServed | Chicago ⓘ |
| code |
O'Hare station
self-linksurface differs
ⓘ
surface form:
OHare (CTA internal identifier)
|
| connectsTo |
Chicago Loop
ⓘ
Oak Park station (Blue Line) ⓘ
surface form:
Forest Park branch of the Blue Line
|
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification | third rail ⓘ |
| fareSystem |
CTA farecard system
ⓘ
Ventra ⓘ |
| fareType | premium airport fare for some riders ⓘ |
| fareZone | special airport fare zone ⓘ |
| hasAdjacentStation | Rosemont station ⓘ |
| hasBicycleFacilities | no ⓘ |
| hasConnection |
airport bus services
ⓘ
airport parking facilities ⓘ airport people mover system ⓘ |
| hasFeature |
elevators
ⓘ
escalators ⓘ indoor station concourse ⓘ |
| hasParking | no ⓘ |
| hasPassengerRole | gateway for air-rail transfers at O'Hare International Airport ⓘ |
| hasPlatformType | island platform ⓘ |
| hasSecurity | CCTV surveillance ⓘ |
| hasService | 24-hour Blue Line service ⓘ |
| hasTicketing | automated fare collection machines ⓘ |
| isTerminus | yes ⓘ |
| locatedIn |
Chicago, Illinois, United States
ⓘ
surface form:
Chicago
Illinois ⓘ O'Hare International Airport ⓘ United States of America ⓘ
surface form:
United States
|
| numberOfPlatforms | 1 ⓘ |
| numberOfTracks | 2 ⓘ |
| opened | 1984 ⓘ |
| operatedBy | Chicago Transit Authority ⓘ |
| ownedBy | Chicago Transit Authority ⓘ |
| partOfNetwork |
Chicago "L"
ⓘ
surface form:
Chicago 'L' system
|
| partOfSystem |
CTA rail network
ⓘ
surface form:
Chicago Transit Authority rail system
|
| role | primary rail link between O'Hare International Airport and downtown Chicago ⓘ |
| servedByLine |
CTA Blue Line
ⓘ
surface form:
Blue Line (CTA)
|
| serves | O'Hare International Airport terminals ⓘ |
| servesRegion | Chicago metropolitan area ⓘ |
| structureType |
subway station
ⓘ
underground station ⓘ |
| terminusOf |
O'Hare branch of the Blue Line
ⓘ
surface form:
Blue Line O'Hare branch
|
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: O'Hare station Description of subject: O'Hare station is a Chicago Transit Authority Blue Line rapid transit station located at O'Hare International Airport, serving as the primary rail link between the airport and downtown Chicago.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
O'Hare
this entity surface form:
O'Hare branch
subject surface form:
Terminal 3 (O'Hare)
this entity surface form:
Airport Transit System (O'Hare)
this entity surface form:
OHare (CTA internal identifier)