Foster station
E128948
Foster station is a former Chicago Transit Authority 'L' rapid transit stop that once served the Purple Line in Chicago, Illinois.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Foster station canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T844971 — 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: Foster station Context triple: [Purple Line (CTA), hasStation, Foster station]
-
A.
Waban station
Waban station is a light rail stop on Boston's MBTA Green Line located in the Waban neighborhood of Newton, Massachusetts.
-
B.
McCowan station
McCowan station is an elevated Toronto subway station in Scarborough that served as the eastern terminus of the former Line 3 Scarborough.
-
C.
St. Clair station
St. Clair station is a Toronto Transit Commission subway station on Line 1 in midtown Toronto, serving the St. Clair Avenue and Yonge Street area with connections to streetcar and bus routes.
-
D.
Crestmont station
Crestmont station is a SEPTA Regional Rail stop in Abington Township, Pennsylvania, serving passengers on the Warminster Line.
-
E.
Logan station
Logan station is an underground rapid transit stop in Philadelphia, Pennsylvania, serving the Logan neighborhood on SEPTA’s Broad Street 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: Foster station Target entity description: Foster station is a former Chicago Transit Authority 'L' rapid transit stop that once served the Purple Line in Chicago, Illinois.
-
A.
Waban station
Waban station is a light rail stop on Boston's MBTA Green Line located in the Waban neighborhood of Newton, Massachusetts.
-
B.
McCowan station
McCowan station is an elevated Toronto subway station in Scarborough that served as the eastern terminus of the former Line 3 Scarborough.
-
C.
St. Clair station
St. Clair station is a Toronto Transit Commission subway station on Line 1 in midtown Toronto, serving the St. Clair Avenue and Yonge Street area with connections to streetcar and bus routes.
-
D.
Crestmont station
Crestmont station is a SEPTA Regional Rail stop in Abington Township, Pennsylvania, serving passengers on the Warminster Line.
-
E.
Logan station
Logan station is an underground rapid transit stop in Philadelphia, Pennsylvania, serving the Logan neighborhood on SEPTA’s Broad Street Line.
- F. None of above. chosen
Statements (16)
| Predicate | Object |
|---|---|
| instanceOf |
'L' rapid transit station
ⓘ
former Chicago Transit Authority station ⓘ |
| continent | North America ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| electrification | third rail ⓘ |
| fareSystem | CTA fare system ⓘ |
| locatedIn |
Chicago, Illinois
ⓘ
linked to:
Chicago, Illinois, United States
|
| operatedBy | Chicago Transit Authority ⓘ |
| owner | Chicago Transit Authority ⓘ |
| partOfSystem |
Chicago 'L'
ⓘ
linked to:
Chicago "L"
|
| railGauge | standard gauge ⓘ |
| servedCity |
Chicago
ⓘ
linked to:
City of Chicago
|
| servedLine | Purple Line ⓘ |
| servedState | Illinois ⓘ |
| status | closed ⓘ |
| transportMode | rapid transit ⓘ |
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: Foster station Description of subject: Foster station is a former Chicago Transit Authority 'L' rapid transit stop that once served the Purple Line in Chicago, Illinois.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.