Green Line
E154151
The Green Line is one of the color-coded rapid transit routes in Atlanta’s MARTA rail system, serving key stations on the city’s east–west corridor.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Green Line canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T723057 — 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 Context triple: [Metropolitan Atlanta Rapid Transit Authority, railLine, Green Line]
-
A.
Green Line
The Green Line is one of the color-coded rapid transit routes in the Washington Metro system, serving key neighborhoods in Washington, D.C. and parts of Maryland.
-
B.
Green Line
The Green Line is one of Chicago's elevated rapid transit routes, running primarily along the city's West and South Sides as part of the Chicago "L" system.
-
C.
Green Line
The Green Line is one of the color-coded routes of the Tyne and Wear Metro rapid transit system serving the Newcastle upon Tyne area in northeast England.
-
D.
Green Line
The Green Line is a light rail service in the Boston metropolitan area operated by the Massachusetts Bay Transportation Authority (MBTA), known for serving key downtown and surrounding neighborhoods.
-
E.
MAX Green Line
MAX Green Line is a light rail service in the Portland, Oregon metropolitan area that connects downtown Portland with Clackamas Town Center as part of TriMet’s MAX Light Rail system.
- 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 Target entity description: The Green Line is one of the color-coded rapid transit routes in Atlanta’s MARTA rail system, serving key stations on the city’s east–west corridor.
-
A.
Green Line
The Green Line is one of the color-coded rapid transit routes in the Washington Metro system, serving key neighborhoods in Washington, D.C. and parts of Maryland.
-
B.
Green Line
The Green Line is one of Chicago's elevated rapid transit routes, running primarily along the city's West and South Sides as part of the Chicago "L" system.
-
C.
Green Line
The Green Line is a light rail service in the Boston metropolitan area operated by the Massachusetts Bay Transportation Authority (MBTA), known for serving key downtown and surrounding neighborhoods.
-
D.
Green Line
The Green Line is one of the color-coded routes of the Tyne and Wear Metro rapid transit system serving the Newcastle upon Tyne area in northeast England.
-
E.
MAX Green Line
MAX Green Line is a light rail service in the Portland, Oregon metropolitan area that connects downtown Portland with Clackamas Town Center as part of TriMet’s MAX Light Rail system.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
metro line
ⓘ
rapid transit line ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification | third rail ⓘ |
| fareMedium | Breeze Card ⓘ |
| fareSystem |
MARTA Breeze fare system
ⓘ
surface form:
MARTA fare system
|
| hasAccessibility | ADA-compliant stations ⓘ |
| hasColorDesignation | Green Line self-linksurface differs ⓘ |
| hasOfficialLanguage | English ⓘ |
| hasRightOfWay | exclusive ⓘ |
| hasServiceType |
all-day service
ⓘ
peak-hour service ⓘ weekday service ⓘ weekend service ⓘ |
| isColorCodedWith |
Blue Line (MARTA)
ⓘ
Gold Line (MARTA) ⓘ MARTA Red Line ⓘ
surface form:
Red Line (MARTA)
|
| isElectrified | yes ⓘ |
| isGradeSeparated | mostly ⓘ |
| isPartOfNetworkType | rapid transit network ⓘ |
| isPublicTransport | yes ⓘ |
| isUrbanRail | yes ⓘ |
| lineColor | green ⓘ |
| locatedIn |
Atlanta
ⓘ
surface form:
Atlanta, Georgia
Fulton County, Georgia ⓘ |
| mode | rail ⓘ |
| operatedBy |
MARTA rail network
ⓘ
surface form:
MARTA
Metropolitan Atlanta Rapid Transit Authority (MARTA) ⓘ
surface form:
Metropolitan Atlanta Rapid Transit Authority
|
| owner |
Metropolitan Atlanta Rapid Transit Authority (MARTA)
ⓘ
surface form:
Metropolitan Atlanta Rapid Transit Authority
|
| partOf |
MARTA
ⓘ
Metropolitan Atlanta Rapid Transit Authority (MARTA) ⓘ
surface form:
Metropolitan Atlanta Rapid Transit Authority rail system
|
| regionServed |
Atlanta urban area
ⓘ
surface form:
Atlanta metropolitan area
|
| safetyFeature |
CCTV surveillance at stations
ⓘ
emergency intercoms on platforms ⓘ platform edge warning strips ⓘ |
| safetySystem | automatic train control ⓘ |
| servesCity | Atlanta ⓘ |
| servesFunction | urban mass transit ⓘ |
| servicePattern | east–west corridor ⓘ |
| sharesTrackageWith | Blue Line (MARTA) ⓘ |
| systemColorCoding | color-coded line ⓘ |
| ticketingMedium |
paper ticket
ⓘ
smart card ⓘ |
| ticketingSystem | proof-of-payment ⓘ |
| trackGauge | standard gauge ⓘ |
| transitType | heavy rail ⓘ |
| usesRollingStock |
MARTA heavy rail cars
ⓘ
surface form:
MARTA heavy rail vehicles
|
| usesSignaling | automatic block signaling ⓘ |
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 Description of subject: The Green Line is one of the color-coded rapid transit routes in Atlanta’s MARTA rail system, serving key stations on the city’s east–west corridor.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Metropolitan Atlanta Rapid Transit Authority
subject surface form:
Green Line (MARTA)