MBTA bus route 9
E564603
MBTA bus route 9 is a Massachusetts Bay Transportation Authority bus line in Boston that connects Copley Square with the South Boston area.
All labels observed (1)
| Label | Occurrences |
|---|---|
| MBTA bus route 9 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6050704 — 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: MBTA bus route 9 Context triple: [Copley, hasConnection, MBTA bus route 9]
-
A.
MBTA bus route 93
MBTA bus route 93 is a Massachusetts Bay Transportation Authority bus line that connects downtown Boston with the Charlestown and Sullivan Square areas.
-
B.
MBTA bus route 92
MBTA bus route 92 is a Massachusetts Bay Transportation Authority bus line serving the Charlestown and Somerville areas with connections to downtown Boston.
-
C.
MBTA bus route 39
MBTA bus route 39 is a heavily used Boston-area bus line that connects Forest Hills and Back Bay via Jamaica Plain and the Longwood Medical Area, serving as a key replacement for the former Green Line E-branch streetcar service along much of its corridor.
-
D.
MBTA bus route 70
MBTA bus route 70 is a Massachusetts Bay Transportation Authority bus line that runs between Cambridge and Waltham, serving several communities along the Charles River corridor.
-
E.
MBTA bus route 28
MBTA bus route 28 is a major Boston-area bus line that runs along Blue Hill Avenue and Warren Street, connecting Mattapan and Roxbury to downtown transit hubs and serving some of the system’s highest-ridership corridors.
- 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: MBTA bus route 9 Target entity description: MBTA bus route 9 is a Massachusetts Bay Transportation Authority bus line in Boston that connects Copley Square with the South Boston area.
-
A.
MBTA bus route 93
MBTA bus route 93 is a Massachusetts Bay Transportation Authority bus line that connects downtown Boston with the Charlestown and Sullivan Square areas.
-
B.
MBTA bus route 92
MBTA bus route 92 is a Massachusetts Bay Transportation Authority bus line serving the Charlestown and Somerville areas with connections to downtown Boston.
-
C.
MBTA bus route 39
MBTA bus route 39 is a heavily used Boston-area bus line that connects Forest Hills and Back Bay via Jamaica Plain and the Longwood Medical Area, serving as a key replacement for the former Green Line E-branch streetcar service along much of its corridor.
-
D.
MBTA bus route 70
MBTA bus route 70 is a Massachusetts Bay Transportation Authority bus line that runs between Cambridge and Waltham, serving several communities along the Charles River corridor.
-
E.
MBTA bus route 28
MBTA bus route 28 is a major Boston-area bus line that runs along Blue Hill Avenue and Warren Street, connecting Mattapan and Roxbury to downtown transit hubs and serving some of the system’s highest-ridership corridors.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf |
MBTA bus route
ⓘ
public bus route ⓘ |
| connects |
Copley Square
NERFINISHED
ⓘ
South Boston NERFINISHED ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| fareSystem | MBTA fare system ⓘ |
| governingBody | Massachusetts Department of Transportation NERFINISHED ⓘ |
| hasRouteNumber | 9 ⓘ |
| locatedIn |
Boston, Massachusetts
ⓘ
United States ⓘ
linked to:
United States of America
|
| operatedBy |
Massachusetts Bay Transportation Authority
ⓘ
linked to:
MBTA
|
| operatorAbbreviation | MBTA NERFINISHED ⓘ |
| ownedBy |
Massachusetts Bay Transportation Authority
ⓘ
linked to:
MBTA
|
| partOfSystem | MBTA bus network NERFINISHED ⓘ |
| primaryCity | Boston NERFINISHED ⓘ |
| regionServed | Greater Boston ⓘ |
| serves |
Back Bay
NERFINISHED
ⓘ
South Boston neighborhood NERFINISHED ⓘ South End NERFINISHED ⓘ |
| state | Massachusetts ⓘ |
| terminus |
Copley Square
NERFINISHED
ⓘ
South Boston NERFINISHED ⓘ |
| transportMode | bus ⓘ |
| usesTicketing |
CharlieCard
NERFINISHED
ⓘ
CharlieTicket NERFINISHED ⓘ MBTA mobile ticketing NERFINISHED ⓘ |
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: MBTA bus route 9 Description of subject: MBTA bus route 9 is a Massachusetts Bay Transportation Authority bus line in Boston that connects Copley Square with the South Boston area.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.