Harvard Square MBTA station
E656995
Harvard Square MBTA station is a major Red Line subway and bus hub located in the historic Harvard Square area of Cambridge, Massachusetts, serving Harvard University and the surrounding neighborhood.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Harvard Square MBTA station canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T7323137 — 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: Harvard Square MBTA station Context triple: [Cambridge Center for Adult Education, near, Harvard Square MBTA station]
-
A.
MBTA Charles/MGH station
MBTA Charles/MGH station is a Red Line subway stop in Boston serving Massachusetts General Hospital and the Charles River area.
-
B.
Porter Square MBTA Red Line station
Porter Square MBTA Red Line station is an underground rapid transit and commuter rail hub in Cambridge, Massachusetts, serving the MBTA Red Line and Fitchburg Line with access to the surrounding Porter Square commercial district.
-
C.
Massachusetts Avenue station
Massachusetts Avenue station is an underground rapid transit stop in Boston, Massachusetts, located in the South End and served by the MBTA's Orange Line.
-
D.
Coolidge Corner station
Coolidge Corner station is a light rail stop on the MBTA Green Line in Brookline, Massachusetts, serving the busy commercial and residential Coolidge Corner neighborhood.
-
E.
Boylston station
Boylston station is a historic underground light rail stop in downtown Boston that serves the MBTA Green Line.
- 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: Harvard Square MBTA station Target entity description: Harvard Square MBTA station is a major Red Line subway and bus hub located in the historic Harvard Square area of Cambridge, Massachusetts, serving Harvard University and the surrounding neighborhood.
-
A.
MBTA Charles/MGH station
MBTA Charles/MGH station is a Red Line subway stop in Boston serving Massachusetts General Hospital and the Charles River area.
-
B.
Porter Square MBTA Red Line station
Porter Square MBTA Red Line station is an underground rapid transit and commuter rail hub in Cambridge, Massachusetts, serving the MBTA Red Line and Fitchburg Line with access to the surrounding Porter Square commercial district.
-
C.
Massachusetts Avenue station
Massachusetts Avenue station is an underground rapid transit stop in Boston, Massachusetts, located in the South End and served by the MBTA's Orange Line.
-
D.
Coolidge Corner station
Coolidge Corner station is a light rail stop on the MBTA Green Line in Brookline, Massachusetts, serving the busy commercial and residential Coolidge Corner neighborhood.
-
E.
Boylston station
Boylston station is a historic underground light rail stop in downtown Boston that serves the MBTA Green Line.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
MBTA station
ⓘ
bus terminal ⓘ rapid transit station ⓘ |
| accessible | yes ⓘ |
| adjacentStationOnRedLine |
Central station
NERFINISHED
ⓘ
Porter station NERFINISHED ⓘ |
| city | Cambridge NERFINISHED ⓘ |
| connectsTo | MBTA bus network NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| fareControl | gated ⓘ |
| fareSystem |
CharlieCard
NERFINISHED
ⓘ
CharlieTicket NERFINISHED ⓘ |
| fareZone | 1A ⓘ |
| formerService | streetcar ⓘ |
| hasArtProgram | yes ⓘ |
| hasBicycleFacilities | yes ⓘ |
| hasBusConnections | yes ⓘ |
| hasElevators | yes ⓘ |
| hasEscalators | yes ⓘ |
| hasMultipleEntrances | yes ⓘ |
| hasPlatformType | island platform ⓘ |
| hasUndergroundConcourse | yes ⓘ |
| isKeyTransferPoint | yes ⓘ |
| isMajorBusHub | yes ⓘ |
| locatedIn |
Cambridge, Massachusetts
ⓘ
Harvard Square NERFINISHED ⓘ Massachusetts ⓘ Middlesex County, Massachusetts ⓘ United States of America ⓘ
surface form:
United States
|
| locatedNear |
Harvard Kennedy School
NERFINISHED
ⓘ
Harvard Law School NERFINISHED ⓘ Harvard Square commercial district NERFINISHED ⓘ Harvard Yard NERFINISHED ⓘ |
| numberOfPlatforms | 2 ⓘ |
| numberOfTracks | 2 ⓘ |
| openedAsCurrentSubwayStation | 1980s ⓘ |
| operator |
MBTA
ⓘ
surface form:
Massachusetts Bay Transportation Authority
|
| ownedBy |
MBTA
ⓘ
surface form:
Massachusetts Bay Transportation Authority
|
| partOfSystem | MBTA Red Line NERFINISHED ⓘ |
| servedByLine | Red Line NERFINISHED ⓘ |
| serves |
Cambridge community
ⓘ
Harvard Square neighborhood ⓘ Harvard University NERFINISHED ⓘ |
| servesMode |
bus
ⓘ
subway ⓘ |
| servesPrimaryInstitution | Harvard University NERFINISHED ⓘ |
| state | Massachusetts ⓘ |
| structureType | underground station ⓘ |
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: Harvard Square MBTA station Description of subject: Harvard Square MBTA station is a major Red Line subway and bus hub located in the historic Harvard Square area of Cambridge, Massachusetts, serving Harvard University and the surrounding neighborhood.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.