D Branch
E136891
D Branch is a light rail service of Boston’s MBTA Green Line that runs primarily on a former commuter rail right-of-way between downtown Boston and Newton.
All labels observed (2)
How this entity was disambiguated
This entity first appeared as the object of triple T1178214 — 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: D Branch Context triple: [MBTA Green Line, hasBranch, D Branch]
-
A.
B Branch
The 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.
-
B.
C Branch
The C Branch is a light rail service of Boston's MBTA Green Line that runs along Beacon Street between downtown Boston and the Cleveland Circle area of Brighton.
-
C.
B Division
B Division is the New York City Subway division that operates the system’s lettered routes, including services like the R train.
-
D.
B Division
B Division is a competitive grouping or tier within an organized league or tournament structure, typically representing an intermediate or secondary level of play.
-
E.
Babylon Branch
The Babylon Branch is a major commuter rail line of the Long Island Rail Road serving communities along Long Island’s South Shore.
- 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: D Branch Target entity description: D Branch is a light rail service of Boston’s MBTA Green Line that runs primarily on a former commuter rail right-of-way between downtown Boston and Newton.
-
A.
B Branch
The 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.
-
B.
C Branch
The C Branch is a light rail service of Boston's MBTA Green Line that runs along Beacon Street between downtown Boston and the Cleveland Circle area of Brighton.
-
C.
B Division
B Division is the New York City Subway division that operates the system’s lettered routes, including services like the R train.
-
D.
B Division
B Division is a competitive grouping or tier within an organized league or tournament structure, typically representing an intermediate or secondary level of play.
-
E.
Babylon Branch
The Babylon Branch is a major commuter rail line of the Long Island Rail Road serving communities along Long Island’s South Shore.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
MBTA Green Line branch
ⓘ
light rail line ⓘ |
| color | green ⓘ |
| connects |
Newton, Massachusetts
ⓘ
downtown Boston ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification | overhead catenary ⓘ |
| fareSystem | MBTA fare system ⓘ |
| hasMode |
subway (in central subway portion)
ⓘ
surface light rail ⓘ |
| hasRollingStock |
MBTA Type 7 Light Rail Vehicle
ⓘ
surface form:
MBTA Type 7 LRV
MBTA Type 8 Light Rail Vehicle ⓘ
surface form:
MBTA Type 8 LRV
|
| hasServicePattern | all-stop local service ⓘ |
| isBranchOf | MBTA Green Line ⓘ |
| lineDesignation | Green Line D ⓘ |
| locatedIn |
Boston, Massachusetts
ⓘ
surface form:
Boston
Massachusetts ⓘ Newton, Massachusetts ⓘ United States of America ⓘ
surface form:
United States
|
| operator |
MBTA
ⓘ
surface form:
Massachusetts Bay Transportation Authority
|
| owner |
MBTA
ⓘ
surface form:
Massachusetts Bay Transportation Authority
|
| partOf | MBTA Green Line ⓘ |
| regionServed | Greater Boston ⓘ |
| serviceType |
light rail
ⓘ
urban rail transit ⓘ |
| system |
MBTA Green Line
ⓘ
surface form:
MBTA light rail
|
| terminus |
Government Center station
ⓘ
Riverside station ⓘ |
| trackGauge | standard gauge ⓘ |
| usesRightOfWay | former commuter rail right-of-way ⓘ |
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: D Branch Description of subject: D Branch is a light rail service of Boston’s MBTA Green Line that runs primarily on a former commuter rail right-of-way between downtown Boston and Newton.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Green Line (MBTA)
this entity surface form:
D branch
subject surface form:
Waban station
this entity surface form:
D branch