South Boulevard station
E180341
South Boulevard station is a Chicago Transit Authority 'L' rapid transit stop on the Purple Line serving the Evanston area just north of Chicago.
All labels observed (2)
| Label | Occurrences |
|---|---|
| South Boulevard station canonical | 2 |
| South Boulevard station (Purple Line) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T844975 — 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: South Boulevard station Context triple: [Purple Line (CTA), hasStation, South Boulevard station]
-
A.
Forest Park station
Forest Park station is a Chicago Transit Authority rapid transit station in Forest Park, Illinois, serving as the western endpoint of the Blue Line.
-
B.
Central Avenue station
Central Avenue station is a stop on Boston's MBTA Mattapan Trolley line serving the Milton area along the historic Ashmont–Mattapan High-Speed Line.
-
C.
Branch Avenue station
Branch Avenue station is a Washington Metro rail station in Maryland that serves as the southern terminus of the system’s Green Line.
-
D.
Pattison Avenue station
Pattison Avenue station is a subway station in Philadelphia that serves as the southern terminus of SEPTA’s Broad Street Line, providing access to the South Philadelphia Sports Complex.
-
E.
Wynnefield Avenue station
Wynnefield Avenue station is a regional rail stop in Philadelphia, Pennsylvania, served by SEPTA’s Cynwyd 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: South Boulevard station Target entity description: South Boulevard station is a Chicago Transit Authority 'L' rapid transit stop on the Purple Line serving the Evanston area just north of Chicago.
-
A.
Forest Park station
Forest Park station is a Chicago Transit Authority rapid transit station in Forest Park, Illinois, serving as the western endpoint of the Blue Line.
-
B.
Central Avenue station
Central Avenue station is a stop on Boston's MBTA Mattapan Trolley line serving the Milton area along the historic Ashmont–Mattapan High-Speed Line.
-
C.
Branch Avenue station
Branch Avenue station is a Washington Metro rail station in Maryland that serves as the southern terminus of the system’s Green Line.
-
D.
Pattison Avenue station
Pattison Avenue station is a subway station in Philadelphia that serves as the southern terminus of SEPTA’s Broad Street Line, providing access to the South Philadelphia Sports Complex.
-
E.
Wynnefield Avenue station
Wynnefield Avenue station is a regional rail stop in Philadelphia, Pennsylvania, served by SEPTA’s Cynwyd Line.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
'L' station
ⓘ
railway station in the United States ⓘ rapid transit station ⓘ |
| accessible | no ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification | third rail ⓘ |
| fareGatesLocation | station house at street level ⓘ |
| fareSystem | Ventra ⓘ |
| fareZone | CTA flat fare system ⓘ |
| formerOperator | Chicago Rapid Transit Company ⓘ |
| hasBicycleFacilities | yes ⓘ |
| hasDirectionOfService |
northbound
ⓘ
southbound ⓘ |
| hasParking | no ⓘ |
| hasTicketing | automated vending machines ⓘ |
| hasTracks | 2 ⓘ |
| lineColor | Purple ⓘ |
| locatedIn | Evanston, Illinois ⓘ |
| locatedInMetropolitanArea | Chicago metropolitan area ⓘ |
| locatedNorthOf |
City of Chicago
ⓘ
surface form:
Chicago
|
| opened | 1918 ⓘ |
| operator | Chicago Transit Authority ⓘ |
| owner | Chicago Transit Authority ⓘ |
| partOfSystem |
Chicago "L"
ⓘ
surface form:
Chicago 'L'
|
| platformType | island platform ⓘ |
| servesCity |
Evanston, Illinois
ⓘ
surface form:
Evanston
|
| servesFunction | commuter transport ⓘ |
| servesLine | Purple Line ⓘ |
| structureType | elevated ⓘ |
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: South Boulevard station Description of subject: South Boulevard station is a Chicago Transit Authority 'L' rapid transit stop on the Purple Line serving the Evanston area just north of Chicago.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Purple Line (CTA)
this entity surface form:
South Boulevard station (Purple Line)