Dempster station (Purple Line)
E101654
Dempster station (Purple Line) is an elevated Chicago Transit Authority rapid transit stop in Evanston, Illinois, serving the Purple Line.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Dempster station (Purple Line) canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T844973 — 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: Dempster station (Purple Line) Context triple: [Purple Line (CTA), hasStation, Dempster station (Purple Line)]
-
A.
Central station (Purple Line)
Central station (Purple Line) is a Chicago Transit Authority 'L' rapid transit stop on the Purple Line serving the Evanston area north of Chicago.
-
B.
Penn Station (Light RailLink)
Penn Station (Light RailLink) is a light rail station in Baltimore that serves as a key transit stop adjacent to the city’s main intercity train terminal, Baltimore Penn Station.
-
C.
Jackson station (Blue Line)
Jackson station (Blue Line) is an underground Chicago Transit Authority rapid transit stop in the Loop that serves the Blue Line trains running through downtown Chicago.
-
D.
Crescent Street station
Crescent Street station is a New York City Subway station in Brooklyn served by the J train.
-
E.
Park Street station
Park Street station is a major downtown Boston transit hub on the MBTA system, serving multiple Green Line branches and providing connections to the Red 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: Dempster station (Purple Line) Target entity description: Dempster station (Purple Line) is an elevated Chicago Transit Authority rapid transit stop in Evanston, Illinois, serving the Purple Line.
-
A.
Central station (Purple Line)
Central station (Purple Line) is a Chicago Transit Authority 'L' rapid transit stop on the Purple Line serving the Evanston area north of Chicago.
-
B.
Penn Station (Light RailLink)
Penn Station (Light RailLink) is a light rail station in Baltimore that serves as a key transit stop adjacent to the city’s main intercity train terminal, Baltimore Penn Station.
-
C.
Jackson station (Blue Line)
Jackson station (Blue Line) is an underground Chicago Transit Authority rapid transit stop in the Loop that serves the Blue Line trains running through downtown Chicago.
-
D.
Crescent Street station
Crescent Street station is a New York City Subway station in Brooklyn served by the J train.
-
E.
Park Street station
Park Street station is a major downtown Boston transit hub on the MBTA system, serving multiple Green Line branches and providing connections to the Red Line.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
Chicago Transit Authority station
ⓘ
elevated railway station ⓘ rapid transit station ⓘ |
| accessType | stairs ⓘ |
| category |
CTA Purple Line stations
ⓘ
Elevated railway stations in Illinois ⓘ Railway stations in Evanston, Illinois ⓘ |
| city | Evanston, Illinois ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| electrification | third rail ⓘ |
| fareCollection | automated farecard system ⓘ |
| fareGatesLocation | station house at street level ⓘ |
| fareSystem | Ventra ⓘ |
| fareZoneSystem | flat fare (CTA) ⓘ |
| hasAdjacentStation |
Davis station (Purple Line)
ⓘ
Main station (Purple Line) ⓘ |
| hasConnections | CTA bus services (nearby stops) ⓘ |
| hasService |
CTA Purple Line local service
ⓘ
linked to:
Purple Line (CTA)
|
| hasShelter | canopies over platform ⓘ |
| isPartOf |
Purple Line Evanston branch
ⓘ
linked to:
Purple Line (CTA)
|
| locatedIn |
Evanston, Illinois
ⓘ
Illinois ⓘ United States ⓘ
linked to:
United States of America
|
| mode | rail ⓘ |
| numberOfPlatforms | 1 ⓘ |
| numberOfTracks | 2 ⓘ |
| operator | Chicago Transit Authority ⓘ |
| ownedBy | Chicago Transit Authority ⓘ |
| parkingAvailability | nearby street parking ⓘ |
| partOfNetwork | Chicago Transit Authority rail system ⓘ |
| platformConfiguration | center platform between two tracks ⓘ |
| platformType | island platform ⓘ |
| publicTransportType | rapid transit ⓘ |
| railGauge | standard gauge ⓘ |
| safetyFeatures |
CCTV surveillance
ⓘ
lighting on platforms ⓘ public address system ⓘ |
| servesCommunity | Evanston, Illinois ⓘ |
| servesCorridor | north suburban corridor of Chicago area ⓘ |
| servesLine | Purple Line (CTA) ⓘ |
| state | Illinois ⓘ |
| structureType | elevated ⓘ |
| transitSystem | Chicago "L" ⓘ |
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: Dempster station (Purple Line) Description of subject: Dempster station (Purple Line) is an elevated Chicago Transit Authority rapid transit stop in Evanston, Illinois, serving the Purple Line.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Purple Line