Orange Line (CTA)
E526018
The Orange Line (CTA) is a rapid transit route in Chicago that connects the Loop with Midway International Airport and several Southwest Side neighborhoods.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Orange Line (CTA) canonical | 17 |
| Orange Line (Chicago "L") | 2 |
| Orange Line trains | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4549980 — 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: Orange Line (CTA) Context triple: [Midway station (CTA), line, Orange Line (CTA)]
-
A.
Yellow Line (CTA)
The Yellow Line (CTA), also known as the Skokie Swift, is a short Chicago Transit Authority rapid transit route that runs between Howard and Skokie without serving downtown Chicago.
-
B.
Purple Line (CTA)
The Purple Line (CTA) is a rapid transit route in Chicago primarily serving the northern suburbs and Evanston, with express service to downtown during weekday rush hours.
-
C.
Orange Line
The Orange Line is one of the primary rapid transit routes in the Washington Metro system, running east–west through Washington, D.C. and its Virginia and Maryland suburbs.
-
D.
Orange Line
The Orange Line is a light rail route in the Dallas Area Rapid Transit (DART) system serving key destinations including Dallas/Fort Worth International Airport and several northern suburbs.
-
E.
Orange Line
The Orange Line is one of the primary rapid transit routes in Montreal’s Metro system, running in a U-shaped corridor that connects several major residential and commercial districts across the city.
- 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: Orange Line (CTA) Target entity description: The Orange Line (CTA) is a rapid transit route in Chicago that connects the Loop with Midway International Airport and several Southwest Side neighborhoods.
-
A.
Yellow Line (CTA)
The Yellow Line (CTA), also known as the Skokie Swift, is a short Chicago Transit Authority rapid transit route that runs between Howard and Skokie without serving downtown Chicago.
-
B.
Purple Line (CTA)
The Purple Line (CTA) is a rapid transit route in Chicago primarily serving the northern suburbs and Evanston, with express service to downtown during weekday rush hours.
-
C.
Orange Line
The Orange Line is a light rail route in the Dallas Area Rapid Transit (DART) system serving key destinations including Dallas/Fort Worth International Airport and several northern suburbs.
-
D.
Orange Line
The Orange Line is one of the primary rapid transit routes in Montreal’s Metro system, running in a U-shaped corridor that connects several major residential and commercial districts across the city.
-
E.
Orange Line
The Orange Line is one of the primary rapid transit routes in the Washington Metro system, running east–west through Washington, D.C. and its Virginia and Maryland suburbs.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf | rapid transit line ⓘ |
| color | orange ⓘ |
| connectsWith |
Blue Line (CTA)
NERFINISHED
ⓘ
Brown Line (CTA) NERFINISHED ⓘ CTA bus NERFINISHED ⓘ Green Line (CTA) NERFINISHED ⓘ Metra NERFINISHED ⓘ Pink Line (CTA) NERFINISHED ⓘ Purple Line (CTA) NERFINISHED ⓘ Red Line (CTA) NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification | third rail ⓘ |
| fareIntegration |
CTA bus network
ⓘ
CTA rail ⓘ |
| fareSystem | Ventra ⓘ |
| hasStation |
35th/Archer station
NERFINISHED
ⓘ
Ashland station (CTA Orange Line) NERFINISHED ⓘ Clark/Lake station NERFINISHED ⓘ Halsted station (CTA Orange Line) NERFINISHED ⓘ Harold Washington Library–State/Van Buren station NERFINISHED ⓘ Kedzie station (CTA Orange Line) NERFINISHED ⓘ LaSalle/Van Buren station NERFINISHED ⓘ Midway station (CTA) NERFINISHED ⓘ Pulaski station (CTA Orange Line) NERFINISHED ⓘ Quincy station (CTA) NERFINISHED ⓘ Roosevelt station (CTA) NERFINISHED ⓘ Washington/Wells station NERFINISHED ⓘ Western station (CTA Orange Line) NERFINISHED ⓘ |
| locale | Chicago, Illinois NERFINISHED ⓘ |
| loopConfiguration | uses Inner Loop tracks ⓘ |
| openingDate | 1993 ⓘ |
| operator | Chicago Transit Authority ⓘ |
| owner | Chicago Transit Authority ⓘ |
| primaryPurpose |
airport access
ⓘ
commuter service ⓘ |
| regionServed | Southwest Side of Chicago NERFINISHED ⓘ |
| rollingStock |
CTA 2600-series railcars
NERFINISHED
ⓘ
CTA 3200-series railcars NERFINISHED ⓘ |
| serves |
Chicago Loop
NERFINISHED
ⓘ
Midway International Airport NERFINISHED ⓘ Southwest Side, Chicago NERFINISHED ⓘ |
| servicePattern | all stops ⓘ |
| serviceType | rapid transit ⓘ |
| system | Chicago 'L' NERFINISHED ⓘ |
| terminus |
Loop
NERFINISHED
ⓘ
Midway International Airport NERFINISHED ⓘ |
| trackGauge | standard gauge ⓘ |
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: Orange Line (CTA) Description of subject: The Orange Line (CTA) is a rapid transit route in Chicago that connects the Loop with Midway International Airport and several Southwest Side neighborhoods.
Referenced by (20)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Orange Line trains
subject surface form:
Roosevelt station (CTA)
this entity surface form:
Orange Line (Chicago "L")
this entity surface form:
Orange Line (Chicago "L")
subject surface form:
Jackson (CTA Red Line station)