Green Line (CTA) main line

E521596

public transport route rapid transit line

The Green Line (CTA) main line is a principal rapid transit route in Chicago’s 'L' system, running primarily along the South and West Sides and serving as a core corridor that branches to multiple termini.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (8)

Label	Occurrences
Green Line (CTA)	2
Green Line (CTA) Cottage Grove branch	1
Green Line (CTA) Harlem/Lake branch	1
Green Line (CTA) branches	1
Green Line (CTA) main line canonical	1
Green Line (CTA) stations	1
Green Line (via Loop)	1
Green Line Lake–Englewood/Jackson Park service	1

How this entity was disambiguated

This entity first appeared as the object of triple T4414605 — 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 (CTA) main line
Context triple: [Ashland/63rd Branch, connectsWith, Green Line (CTA) main line]

A. Yellow Line (CTA)
The Yellow Line (CTA), also known as the Skokie Swift, is a short Chicago Transit Authority rapid transit route that runs between Howard and Skokie without serving downtown Chicago.
B. Purple Line (CTA)
The Purple Line (CTA) is a rapid transit route in Chicago primarily serving the northern suburbs and Evanston, with express service to downtown during weekday rush hours.
C. Fourth Avenue Line
The Fourth Avenue Line is a major New York City Subway trunk line in Brooklyn that carries several services, including the N train, along a north–south corridor.
D. Red Line (Chicago "L")
The Red Line is a major rapid transit route of the Chicago "L" system, running north–south through the city and operating 24 hours a day.
E. Sixth Avenue Line
The Sixth Avenue Line is a major New York City Subway trunk line in Manhattan that primarily carries B, D, F, and M trains along Sixth Avenue.
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 (CTA) main line
Target entity description: The Green Line (CTA) main line is a principal rapid transit route in Chicago’s 'L' system, running primarily along the South and West Sides and serving as a core corridor that branches to multiple termini.

A. Yellow Line (CTA)
The Yellow Line (CTA), also known as the Skokie Swift, is a short Chicago Transit Authority rapid transit route that runs between Howard and Skokie without serving downtown Chicago.
B. Purple Line (CTA)
The Purple Line (CTA) is a rapid transit route in Chicago primarily serving the northern suburbs and Evanston, with express service to downtown during weekday rush hours.
C. Fourth Avenue Line
The Fourth Avenue Line is a major New York City Subway trunk line in Brooklyn that carries several services, including the N train, along a north–south corridor.
D. Red Line (Chicago "L")
The Red Line is a major rapid transit route of the Chicago "L" system, running north–south through the city and operating 24 hours a day.
E. Sixth Avenue Line
The Sixth Avenue Line is a major New York City Subway trunk line in Manhattan that primarily carries B, D, F, and M trains along Sixth Avenue.
F. None of above. chosen

Statements (46)

Predicate	Object
instanceOf	public transport route ⓘ rapid transit line ⓘ
color	green ⓘ
connectsWith	Blue Line (CTA) ⓘ linked to: CTA Blue Line Brown Line (CTA) ⓘ linked to: Brown Line Orange Line (CTA) ⓘ Pink Line (CTA) ⓘ linked to: CTA Pink Line Purple Line (CTA) ⓘ Red Line (CTA) ⓘ linked to: Red Line (Chicago "L")
electrification	third rail ⓘ
fareCollection	proof-of-payment at station turnstiles ⓘ
fareSystem	Ventra ⓘ
hasBranch	Green Line (CTA) Ashland/63rd branch ⓘ linked to: Green Line Ashland/63rd Branch Green Line (CTA) Cottage Grove branch ⓘ linked to: Green Line (CTA) main line Green Line (CTA) Harlem/Lake branch ⓘ linked to: Green Line (CTA) main line
hasFeature	accessible stations ⓘ park-and-ride facilities at some stations ⓘ
hasServiceOperator	CTA rail operations division ⓘ linked to: Chicago Transit Authority
hasTerminus	Ashland/63rd station ⓘ Cottage Grove station ⓘ Harlem/Lake station ⓘ
isCoreCorridorFor	Green Line (CTA) branches ⓘ linked to: Green Line (CTA) main line
locatedIn	Chicago ⓘ linked to: Chicago, Illinois, United States Illinois ⓘ United States ⓘ linked to: United States of America
mode	rail ⓘ
operator	Chicago Transit Authority ⓘ
ownedBy	Chicago Transit Authority ⓘ
partOf	Chicago 'L' ⓘ linked to: Chicago "L"
passesThrough	Englewood neighborhood ⓘ Garfield Park corridor ⓘ Loop Elevated ⓘ linked to: Loop elevated Woodlawn neighborhood ⓘ
regionServed	Chicago metropolitan area ⓘ
routeColorUsedOnMaps	green ⓘ
safetySystem	wayside signaling ⓘ
servesArea	Chicago Loop ⓘ South Side of Chicago ⓘ linked to: South Side, Chicago West Side of Chicago ⓘ linked to: West Side, Chicago
servicePattern	all-day service ⓘ
system	Chicago Transit Authority rail system ⓘ linked to: CTA rail network
trackGauge	standard gauge ⓘ
transitType	rapid transit ⓘ
usesInfrastructure	at-grade railway ⓘ elevated railway ⓘ
usesRollingStock	electric multiple units ⓘ

How these facts were elicited