Back Bay station
E104961
Back Bay station is a major transportation hub in Boston, Massachusetts, serving MBTA commuter rail, Amtrak, and subway lines in the Back Bay neighborhood.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Back Bay station canonical | 9 |
| Back Bay Station | 2 |
| Back Bay Station (Boston) | 1 |
| Back Bay station (MBTA Orange Line and commuter rail) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T639076 — 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: Back Bay station Context triple: [the T, notableStation, Back Bay station]
-
A.
North Station
North Station is a major transportation hub in Boston, Massachusetts, serving as a key commuter rail, subway, and intercity bus terminal integrated with the TD Garden arena.
-
B.
Fenway station
Fenway station is a light rail stop on Boston’s MBTA Green Line serving the Fenway–Kenmore area near Fenway Park.
-
C.
South Station
South Station is Boston’s major intercity rail and bus terminal and a key MBTA subway hub in the city’s downtown.
-
D.
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.
-
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: Back Bay station Target entity description: Back Bay station is a major transportation hub in Boston, Massachusetts, serving MBTA commuter rail, Amtrak, and subway lines in the Back Bay neighborhood.
-
A.
North Station
North Station is a major transportation hub in Boston, Massachusetts, serving as a key commuter rail, subway, and intercity bus terminal integrated with the TD Garden arena.
-
B.
Fenway station
Fenway station is a light rail stop on Boston’s MBTA Green Line serving the Fenway–Kenmore area near Fenway Park.
-
C.
South Station
South Station is Boston’s major intercity rail and bus terminal and a key MBTA subway hub in the city’s downtown.
-
D.
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.
-
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 (49)
| Predicate | Object |
|---|---|
| instanceOf |
Amtrak station
ⓘ
commuter rail station ⓘ railway station ⓘ subway station ⓘ transportation hub ⓘ |
| accessible | yes ⓘ |
| address | 145 Dartmouth Street, Boston, Massachusetts ⓘ |
| cityServed |
Boston, Massachusetts
ⓘ
surface form:
Boston
|
| commuterService | MBTA commuter rail lines to suburbs southwest and west of Boston ⓘ |
| connectsTo |
Copley Place shopping mall (via passageways)
ⓘ
South End neighborhood (via entrances and streets) ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| fareZone | Zone 1A (MBTA Commuter Rail) ⓘ |
| hasFacility |
restrooms
ⓘ
retail concessions ⓘ ticketing facilities ⓘ waiting area ⓘ |
| hasStructure |
partially enclosed mainline rail platforms
ⓘ
underground platforms for Orange Line ⓘ |
| locatedIn |
Back Bay
ⓘ
surface form:
Back Bay, Boston, Massachusetts
Boston, Massachusetts ⓘ United States of America ⓘ
surface form:
United States
|
| longDistanceService | Amtrak intercity trains on the Northeast Corridor ⓘ |
| nearby |
Copley Square, Boston
ⓘ
surface form:
Copley Square
Hynes Convention Center station ⓘ
surface form:
Hynes Convention Center area
Prudential Center ⓘ |
| neighborhood | Back Bay ⓘ |
| opened | 1987 ⓘ |
| operator |
Amtrak
ⓘ
MBTA ⓘ
surface form:
Massachusetts Bay Transportation Authority
|
| ownedBy |
MBTA
ⓘ
surface form:
Massachusetts Bay Transportation Authority
|
| partOfLine | Northeast Corridor ⓘ |
| partOfSystem |
MBTA Commuter Rail network
ⓘ
surface form:
MBTA Commuter Rail system
Boston subway ⓘ
surface form:
MBTA subway system
|
| platforms | multiple island and side platforms ⓘ |
| railServices |
Amtrak Acela
ⓘ
Amtrak Lake Shore Limited ⓘ Amtrak Northeast Regional ⓘ MBTA Framingham/Worcester Line ⓘ Franklin/Foxboro Line ⓘ
surface form:
MBTA Franklin/Foxboro Line (limited/indirect service patterns)
MBTA Needham Line ⓘ MBTA Commuter Rail Providence/Stoughton Line ⓘ
surface form:
MBTA Providence/Stoughton Line
|
| regionServed | Greater Boston ⓘ |
| replaced | older Back Bay station on the New York, New Haven and Hartford Railroad main line ⓘ |
| servedBy |
Amtrak
ⓘ
MBTA Commuter Rail network ⓘ
surface form:
MBTA Commuter Rail
Green Line E branch ⓘ
surface form:
MBTA Green Line (E branch via nearby Prudential and Copley)
MBTA Orange Line ⓘ |
| tracks |
Northeast Corridor
ⓘ
surface form:
Northeast Corridor tracks
|
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: Back Bay station Description of subject: Back Bay station is a major transportation hub in Boston, Massachusetts, serving MBTA commuter rail, Amtrak, and subway lines in the Back Bay neighborhood.
Referenced by (13)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Back Bay station (MBTA Orange Line and commuter rail)
this entity surface form:
Back Bay Station
this entity surface form:
Back Bay Station
this entity surface form:
Back Bay Station (Boston)