Mattapan station
E178391
Mattapan station is a transit station in Boston, Massachusetts, serving as the terminus of the MBTA's Ashmont–Mattapan High-Speed Line.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mattapan station canonical | 15 |
How this entity was disambiguated
This entity first appeared as the object of triple T886268 — 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: Mattapan station Context triple: [Ashmont branch, hasStation, Mattapan station]
-
A.
Malden Center station
Malden Center station is a major transit hub in Malden, Massachusetts, serving both MBTA Orange Line subway and commuter rail services.
-
B.
Belmont station
Belmont station is a major Chicago Transit Authority 'L' station on the North Side that serves as a key transfer point between multiple rapid transit lines.
-
C.
Porter station
Porter station is a major MBTA transit hub in Cambridge, Massachusetts, serving both Red Line subway and commuter rail trains beneath Porter Square.
-
D.
Massapequa station
Massapequa station is a Long Island Rail Road commuter rail stop in Massapequa, New York, serving riders on the busy Babylon Branch between New York City and eastern Long Island.
-
E.
Copley station
Copley station is a major underground MBTA subway stop in Boston’s Back Bay neighborhood, serving multiple branches of the Green Line and providing access to nearby landmarks like Copley Square and the Boston Public Library.
- 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: Mattapan station Target entity description: Mattapan station is a transit station in Boston, Massachusetts, serving as the terminus of the MBTA's Ashmont–Mattapan High-Speed Line.
-
A.
Malden Center station
Malden Center station is a major transit hub in Malden, Massachusetts, serving both MBTA Orange Line subway and commuter rail services.
-
B.
Belmont station
Belmont station is a major Chicago Transit Authority 'L' station on the North Side that serves as a key transfer point between multiple rapid transit lines.
-
C.
Porter station
Porter station is a major MBTA transit hub in Cambridge, Massachusetts, serving both Red Line subway and commuter rail trains beneath Porter Square.
-
D.
Massapequa station
Massapequa station is a Long Island Rail Road commuter rail stop in Massapequa, New York, serving riders on the busy Babylon Branch between New York City and eastern Long Island.
-
E.
Copley station
Copley station is a major underground MBTA subway stop in Boston’s Back Bay neighborhood, serving multiple branches of the Green Line and providing access to nearby landmarks like Copley Square and the Boston Public Library.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
light rail station
ⓘ
terminus station ⓘ transportation hub ⓘ |
| connectsTo | Ashmont station via Ashmont–Mattapan High-Speed Line ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| formerService |
New York, New Haven and Hartford Railroad
ⓘ
Old Colony Railroad ⓘ |
| hasBicycleFacilities | yes ⓘ |
| hasConnection | MBTA bus routes ⓘ |
| hasFareSystem | MBTA fare system ⓘ |
| hasLineCharacter | heritage streetcar-style light rail ⓘ |
| hasParking | yes ⓘ |
| hasPlatformType | side platforms ⓘ |
| hasStructureType | at-grade ⓘ |
| hasTracks | 2 ⓘ |
| isAccessible | partially ⓘ |
| isTerminusDirection | western terminus of Ashmont–Mattapan High-Speed Line ⓘ |
| locatedIn |
Boston, Massachusetts
ⓘ
Mattapan, Boston, Massachusetts ⓘ
linked to:
Mattapan
United States ⓘ
linked to:
United States of America
|
| opened | 1929 ⓘ |
| operator |
Massachusetts Bay Transportation Authority
ⓘ
linked to:
MBTA
|
| ownedBy |
Massachusetts Bay Transportation Authority
ⓘ
linked to:
MBTA
|
| partOf |
MBTA Red Line light rail system
ⓘ
linked to:
MBTA Red Line
|
| serves |
Ashmont–Mattapan High-Speed Line
ⓘ
linked to:
Mattapan High-Speed Line
|
| servesCity |
Boston
ⓘ
linked to:
Boston, Massachusetts
|
| servesMode |
bus
ⓘ
light rail ⓘ |
| servesNeighborhood | Mattapan ⓘ |
| terminusOf |
Ashmont–Mattapan High-Speed Line
ⓘ
linked to:
Mattapan High-Speed Line
|
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: Mattapan station Description of subject: Mattapan station is a transit station in Boston, Massachusetts, serving as the terminus of the MBTA's Ashmont–Mattapan High-Speed Line.
Referenced by (15)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Red Line
subject linked to:
Red Line and Mattapan Line
subject linked to:
Mattapan yard