Green Line is colored green
E505502
The Green Line is one of Boston’s MBTA subway routes, known for serving key central and western neighborhoods and being designated by the color green on transit maps.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Green Line is colored green canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5249042 — 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 is colored green Context triple: [Boston subway, colorCodeSystem, Green Line is colored green]
-
A.
Green (as part of Green Line)
Green (as part of the Green Line) is the color designation used for Chicago's Green Line rapid transit route, including its Englewood Branch, within the Chicago 'L' system.
-
B.
Green line
The Green line is one of the main color-coded routes in the Stockholm metro system, serving numerous central and suburban stations across the city.
-
C.
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.
-
D.
Red Line and Green Line
Red Line and Green Line are two key Boston MBTA subway lines that intersect at Park Street Station, serving as major routes through the city and surrounding areas.
-
E.
Yellow Line
The Yellow Line is one of the color-coded rapid transit routes in the Washington Metro system, running primarily in a north–south direction and serving key areas in Washington, D.C. and Northern Virginia.
- 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 is colored green Target entity description: The Green Line is one of Boston’s MBTA subway routes, known for serving key central and western neighborhoods and being designated by the color green on transit maps.
-
A.
Green (as part of Green Line)
Green (as part of the Green Line) is the color designation used for Chicago's Green Line rapid transit route, including its Englewood Branch, within the Chicago 'L' system.
-
B.
Green line
The Green line is one of the main color-coded routes in the Stockholm metro system, serving numerous central and suburban stations across the city.
-
C.
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.
-
D.
Red Line and Green Line
Red Line and Green Line are two key Boston MBTA subway lines that intersect at Park Street Station, serving as major routes through the city and surrounding areas.
-
E.
Yellow Line
The Yellow Line is one of the color-coded rapid transit routes in the Washington Metro system, running primarily in a north–south direction and serving key areas in Washington, D.C. and Northern Virginia.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
MBTA subway line
ⓘ
light rail line ⓘ public transit route ⓘ |
| color | green ⓘ |
| connectsWith |
Blue Line (MBTA)
NERFINISHED
ⓘ
Orange Line (MBTA) NERFINISHED ⓘ Red Line (MBTA) NERFINISHED ⓘ |
| designationColor | green ⓘ |
| electrification | overhead catenary ⓘ |
| fareSystem | MBTA fare system ⓘ |
| hasBranch |
Green Line B branch
NERFINISHED
ⓘ
Green Line C branch NERFINISHED ⓘ Green Line D branch NERFINISHED ⓘ Green Line E branch NERFINISHED ⓘ |
| hasCentralSubway |
Boylston Street subway
NERFINISHED
ⓘ
Tremont Street subway NERFINISHED ⓘ |
| hasTerminus |
Boston College station
NERFINISHED
ⓘ
Cleveland Circle station NERFINISHED ⓘ Heath Street station NERFINISHED ⓘ Riverside station NERFINISHED ⓘ |
| isOldest |
oldest subway line in Boston
ⓘ
one of the oldest subway lines in the United States ⓘ |
| locatedIn |
Boston, Massachusetts
ⓘ
surface form:
Boston
Massachusetts ⓘ United States of America ⓘ
surface form:
United States
|
| mapSymbol | green-colored line on MBTA rapid transit map ⓘ |
| modeOfTransport | light rail ⓘ |
| openedAsSubway | 1897 ⓘ |
| operator |
MBTA
ⓘ
surface form:
Massachusetts Bay Transportation Authority
|
| partOf |
MBTA
NERFINISHED
ⓘ
MBTA subway system NERFINISHED ⓘ |
| representedAs | green on MBTA maps ⓘ |
| serves |
Allston
NERFINISHED
ⓘ
Back Bay NERFINISHED ⓘ Brighton NERFINISHED ⓘ Brookline NERFINISHED ⓘ Fenway–Kenmore NERFINISHED ⓘ Newton NERFINISHED ⓘ Somerville NERFINISHED ⓘ central Boston neighborhoods ⓘ western Boston neighborhoods ⓘ |
| shortName | Green Line NERFINISHED ⓘ |
| system | MBTA NERFINISHED ⓘ |
| ticketMedium |
CharlieCard
NERFINISHED
ⓘ
CharlieTicket NERFINISHED ⓘ |
| trackGauge | standard gauge ⓘ |
| uses | light rail vehicles ⓘ |
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 is colored green Description of subject: The Green Line is one of Boston’s MBTA subway routes, known for serving key central and western neighborhoods and being designated by the color green on transit maps.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.