Clark/Lake station (CTA)
E247917
Clark/Lake station (CTA) is a major elevated and subway transfer station in downtown Chicago’s Loop, serving multiple Chicago 'L' lines and providing convenient access to nearby civic and commercial destinations.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Clark/Lake station (CTA) canonical | 3 |
| Clark/Lake (CTA station) | 1 |
| Clark/Lake station (Loop elevated) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2244649 — 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: Clark/Lake station (CTA) Context triple: [Richard J. Daley Center, publicTransitAccess, Clark/Lake station (CTA)]
-
A.
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.
-
B.
Illinois Medical District station
Illinois Medical District station is a Chicago Transit Authority rapid transit stop on the Blue Line serving the Illinois Medical District and nearby West Side institutions.
-
C.
Hanover Park Metra station
Hanover Park Metra station is a commuter rail station in Hanover Park, Illinois, serving Metra’s Milwaukee District/West Line between Chicago and its northwestern suburbs.
-
D.
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.
-
E.
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.
- 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: Clark/Lake station (CTA) Target entity description: Clark/Lake station (CTA) is a major elevated and subway transfer station in downtown Chicago’s Loop, serving multiple Chicago 'L' lines and providing convenient access to nearby civic and commercial destinations.
-
A.
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.
-
B.
Illinois Medical District station
Illinois Medical District station is a Chicago Transit Authority rapid transit stop on the Blue Line serving the Illinois Medical District and nearby West Side institutions.
-
C.
Hanover Park Metra station
Hanover Park Metra station is a commuter rail station in Hanover Park, Illinois, serving Metra’s Milwaukee District/West Line between Chicago and its northwestern suburbs.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Chicago "L" station
ⓘ
rapid transit station ⓘ |
| connectsTo | Loop elevated structure ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification | third rail ⓘ |
| fareControlLocation | mezzanine level ⓘ |
| faregatesType | turnstiles ⓘ |
| fareSystem | Ventra ⓘ |
| hasAccessibility | wheelchair accessible ⓘ |
| hasAmenities | benches on platforms ⓘ |
| hasCanopy | yes (elevated platforms) ⓘ |
| hasConnection | Chicago Pedway system ⓘ |
| hasElevatedSection | Lake Street elevated (Loop elevated) ⓘ |
| hasElevator | yes ⓘ |
| hasEscalator | yes ⓘ |
| hasLighting | electric station lighting ⓘ |
| hasSecurity | CCTV surveillance ⓘ |
| hasShelter | covered waiting areas on elevated platforms ⓘ |
| hasSignage | CTA standard wayfinding signage ⓘ |
| hasSubwaySection | Dearborn Subway (Blue Line) ⓘ |
| hasTransfer | in-station transfer between elevated and subway platforms ⓘ |
| locatedAtIntersection |
North Clark Street
ⓘ
West Lake Street ⓘ |
| locatedIn |
Chicago, Illinois, United States
ⓘ
surface form:
Chicago, Illinois
United States of America ⓘ
surface form:
United States
|
| locatedInBorough | Chicago Loop ⓘ |
| locatedInNeighborhood | Loop ⓘ |
| nearbyAttraction |
Chicago City Hall
ⓘ
Richard J. Daley Center ⓘ
surface form:
Daley Center
Chicago Loop ⓘ
surface form:
Financial District of Chicago
Thompson Center ⓘ |
| operatedBy | Chicago Transit Authority ⓘ |
| ownedBy | Chicago Transit Authority ⓘ |
| partOfNetwork | Chicago "L" ⓘ |
| platformConfiguration |
island platforms (subway)
ⓘ
side platforms (elevated) ⓘ |
| railGauge | standard gauge ⓘ |
| servesLine |
CTA Blue Line
ⓘ
surface form:
Blue Line (CTA)
Brown Line ⓘ
surface form:
Brown Line (CTA)
CTA Green Line ⓘ
surface form:
Green Line (CTA)
Orange Line (CTA) ⓘ CTA Pink Line ⓘ
surface form:
Pink Line (CTA)
Purple Line (CTA) ⓘ |
| servesPurpose |
commuter transport
ⓘ
interchange between multiple "L" lines ⓘ |
| structureType |
elevated station
ⓘ
subway station ⓘ |
| ticketingSystem | proof-of-payment within paid area ⓘ |
| zone | CTA flat fare zone ⓘ |
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: Clark/Lake station (CTA) Description of subject: Clark/Lake station (CTA) is a major elevated and subway transfer station in downtown Chicago’s Loop, serving multiple Chicago 'L' lines and providing convenient access to nearby civic and commercial destinations.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Illinois Street (Chicago)
this entity surface form:
Clark/Lake station (Loop elevated)
subject surface form:
Lake
this entity surface form:
Clark/Lake (CTA station)