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)
ⓘ
linked to:
MBTA Blue Line
Orange Line (MBTA) ⓘ
linked to:
MBTA Orange Line
Red Line (MBTA) ⓘ
linked to:
MBTA Red Line
|
| designationColor | green ⓘ |
| electrification | overhead catenary ⓘ |
| fareSystem | MBTA fare system ⓘ |
| hasBranch |
Green Line B branch
ⓘ
Green Line C branch ⓘ
linked to:
Green Line C Branch
Green Line D branch ⓘ
linked to:
MBTA Green Line D branch
Green Line E branch ⓘ |
| hasCentralSubway |
Boylston Street subway
ⓘ
linked to:
Boylston Street, Boston
Tremont Street subway ⓘ |
| hasTerminus |
Boston College station
ⓘ
Cleveland Circle station ⓘ Heath Street station ⓘ Riverside station ⓘ |
| isOldest |
oldest subway line in Boston
ⓘ
one of the oldest subway lines in the United States ⓘ |
| locatedIn |
Boston
ⓘ
linked to:
Boston, Massachusetts
Massachusetts ⓘ United States ⓘ
linked to:
United States of America
|
| mapSymbol | green-colored line on MBTA rapid transit map ⓘ |
| modeOfTransport | light rail ⓘ |
| openedAsSubway | 1897 ⓘ |
| operator |
Massachusetts Bay Transportation Authority
ⓘ
linked to:
MBTA
|
| partOf |
MBTA
ⓘ
MBTA subway system ⓘ
linked to:
Boston subway
|
| representedAs | green on MBTA maps ⓘ |
| serves |
Allston
ⓘ
Back Bay ⓘ Brighton ⓘ Brookline ⓘ Fenway–Kenmore ⓘ
linked to:
Fenway
Newton ⓘ Somerville ⓘ
linked to:
Somerville, Massachusetts
central Boston neighborhoods ⓘ western Boston neighborhoods ⓘ |
| shortName | Green Line ⓘ |
| system | MBTA ⓘ |
| ticketMedium |
CharlieCard
ⓘ
CharlieTicket ⓘ |
| 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.