Green Line South Side Main Line
E488863
The Green Line South Side Main Line is a rapid transit route on Chicago's 'L' system that runs along the city's South Side, connecting multiple neighborhoods to the downtown Loop.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Green Line South Side Main Line canonical | 2 |
| Green Line South Side Main Branch | 1 |
| Green Line South Side Main Line trains | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4438964 — 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: Green Line South Side Main Line Context triple: [Indiana station, servedBy, Green Line South Side Main Line]
-
A.
Green Line West Branch
The Green Line West Branch is a segment of Chicago's 'L' rapid transit system that carries Green Line trains between Harlem/Lake and Ashland/63rd on the city's West Side.
-
B.
Green Line C Branch
The Green Line C Branch is a light rail service of Boston's MBTA Green Line that runs primarily along Beacon Street between downtown Boston and the suburb of Brookline.
-
C.
Green Line B branch
The Green Line B branch is a light rail service of Boston's MBTA Green Line that runs along Commonwealth Avenue, primarily serving Boston University and the Allston–Brighton neighborhoods.
-
D.
Green Line
The Green Line is one of the main rapid transit routes of the Dubai Metro, serving key districts along Dubai Creek and connecting important commercial and residential areas.
-
E.
Green Line
The Green Line is one of the main rapid transit corridors of the Chennai Metro system in Chennai, India, connecting key areas of the city via elevated and underground stations.
- 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: Green Line South Side Main Line Target entity description: The Green Line South Side Main Line is a rapid transit route on Chicago's 'L' system that runs along the city's South Side, connecting multiple neighborhoods to the downtown Loop.
-
A.
Green Line West Branch
The Green Line West Branch is a segment of Chicago's 'L' rapid transit system that carries Green Line trains between Harlem/Lake and Ashland/63rd on the city's West Side.
-
B.
Green Line C Branch
The Green Line C Branch is a light rail service of Boston's MBTA Green Line that runs primarily along Beacon Street between downtown Boston and the suburb of Brookline.
-
C.
Green Line B branch
The Green Line B branch is a light rail service of Boston's MBTA Green Line that runs along Commonwealth Avenue, primarily serving Boston University and the Allston–Brighton neighborhoods.
-
D.
Green Line
The Green Line is one of the main rapid transit routes of the Dubai Metro, serving key districts along Dubai Creek and connecting important commercial and residential areas.
-
E.
Green Line
The Green Line is one of the main rapid transit corridors of the Chennai Metro system in Chennai, India, connecting key areas of the city via elevated and underground stations.
- F. None of above. chosen
Statements (38)
| Predicate | Object |
|---|---|
| instanceOf |
elevated railway line
ⓘ
rapid transit line ⓘ |
| colorDesignation | green ⓘ |
| connectsNeighborhood |
Englewood
NERFINISHED
ⓘ
Grand Boulevard NERFINISHED ⓘ Near South Side NERFINISHED ⓘ Washington Park NERFINISHED ⓘ Woodlawn NERFINISHED ⓘ |
| connectsTo |
Blue Line (via transfer stations)
NERFINISHED
ⓘ
Brown Line (via transfer stations) NERFINISHED ⓘ CTA bus network NERFINISHED ⓘ Chicago Loop NERFINISHED ⓘ Green Line West Side branch NERFINISHED ⓘ Loop Elevated NERFINISHED ⓘ Metra (via nearby stations) NERFINISHED ⓘ Orange Line (via transfer stations) NERFINISHED ⓘ Pink Line (via transfer stations) NERFINISHED ⓘ Red Line (via transfer stations) NERFINISHED ⓘ |
| electrification | third rail ⓘ |
| fareCollection | proof-of-payment at station turnstiles ⓘ |
| fareSystem | Ventra ⓘ |
| hasAccessibilityFeature | ADA-accessible stations (many stations) ⓘ |
| hasMode | rail ⓘ |
| hasPlatformType | high-level platforms ⓘ |
| hasServicePattern | all-stop service ⓘ |
| isPartOfNetwork | CTA rail system NERFINISHED ⓘ |
| locatedIn |
Chicago, Illinois, United States
ⓘ
surface form:
Chicago
Illinois ⓘ United States of America ⓘ
surface form:
United States
|
| operator | Chicago Transit Authority ⓘ |
| ownedBy | Chicago Transit Authority ⓘ |
| partOf |
Chicago "L"
NERFINISHED
ⓘ
Green Line (CTA) NERFINISHED ⓘ |
| safetySystem | wayside signals ⓘ |
| servesArea | South Side, Chicago NERFINISHED ⓘ |
| serviceType | rapid transit ⓘ |
| trackGauge | standard gauge ⓘ |
| usesRollingStock | CTA 5000-series railcars NERFINISHED ⓘ |
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: Green Line South Side Main Line Description of subject: The Green Line South Side Main Line is a rapid transit route on Chicago's 'L' system that runs along the city's South Side, connecting multiple neighborhoods to the downtown Loop.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Green Line South Side Main Branch
this entity surface form:
Green Line South Side Main Line trains