Fort Point Channel Tunnel
E1025368
The Fort Point Channel Tunnel is an underwater highway tunnel in Boston that carries Interstate 90 beneath the Fort Point Channel as part of the city’s Big Dig infrastructure.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Fort Point Channel Tunnel canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13093518 — 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: Fort Point Channel Tunnel Context triple: [Central Artery/Tunnel Project, includesStructure, Fort Point Channel Tunnel]
-
A.
East New York Tunnel
The East New York Tunnel is a railroad tunnel in Brooklyn, New York, that carries Long Island Rail Road trains beneath the East New York neighborhood.
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B.
Hugh L. Carey Tunnel
The Hugh L. Carey Tunnel is a major vehicular tunnel in New York City that connects Lower Manhattan to Brooklyn beneath New York Harbor.
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C.
Park Avenue Tunnel
Park Avenue Tunnel is a historic vehicular and former rail tunnel in Manhattan that carries traffic beneath Park Avenue near Grand Central Terminal.
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D.
East River tunnels
The East River Tunnels are a set of underwater railroad tunnels in New York City that carry Amtrak, Long Island Rail Road, and New Jersey Transit trains between Manhattan and Queens beneath the East River.
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E.
East Boston Tunnel
The East Boston Tunnel is a historic underwater transit tunnel in Boston that originally carried streetcars and now forms part of the MBTA’s Blue Line subway connection between downtown Boston and East Boston.
- 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: Fort Point Channel Tunnel Target entity description: The Fort Point Channel Tunnel is an underwater highway tunnel in Boston that carries Interstate 90 beneath the Fort Point Channel as part of the city’s Big Dig infrastructure.
-
A.
East New York Tunnel
The East New York Tunnel is a railroad tunnel in Brooklyn, New York, that carries Long Island Rail Road trains beneath the East New York neighborhood.
-
B.
Hugh L. Carey Tunnel
The Hugh L. Carey Tunnel is a major vehicular tunnel in New York City that connects Lower Manhattan to Brooklyn beneath New York Harbor.
-
C.
Park Avenue Tunnel
Park Avenue Tunnel is a historic vehicular and former rail tunnel in Manhattan that carries traffic beneath Park Avenue near Grand Central Terminal.
-
D.
East River tunnels
The East River Tunnels are a set of underwater railroad tunnels in New York City that carry Amtrak, Long Island Rail Road, and New Jersey Transit trains between Manhattan and Queens beneath the East River.
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E.
East Boston Tunnel
The East Boston Tunnel is a historic underwater transit tunnel in Boston that originally carried streetcars and now forms part of the MBTA’s Blue Line subway connection between downtown Boston and East Boston.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
highway tunnel
ⓘ
road tunnel ⓘ underwater tunnel ⓘ |
| associatedWithProject | Boston Big Dig infrastructure modernization NERFINISHED ⓘ |
| carries | Interstate 90 NERFINISHED ⓘ |
| connects |
Downtown Boston
NERFINISHED
ⓘ
South Boston Waterfront NERFINISHED ⓘ Ted Williams Tunnel NERFINISHED ⓘ |
| constructionMethod | immersed tube tunnel ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| crossesUnder | Fort Point Channel NERFINISHED ⓘ |
| endPoint | Downtown Boston NERFINISHED ⓘ |
| hasFunction | relieve surface traffic congestion in Boston ⓘ |
| hasLanes | multiple traffic lanes ⓘ |
| locatedIn |
Boston, Massachusetts
ⓘ
surface form:
Boston
Massachusetts ⓘ United States of America ⓘ
surface form:
United States
|
| locatedInWaterBodyRegion | Boston Harbor area NERFINISHED ⓘ |
| maintainedBy | Massachusetts Department of Transportation ⓘ |
| opened | early 2000s ⓘ |
| partOf |
Big Dig
NERFINISHED
ⓘ
Central Artery/Tunnel Project NERFINISHED ⓘ |
| partOfNetwork | Interstate Highway System NERFINISHED ⓘ |
| partOfRoute | I-90 mainline NERFINISHED ⓘ |
| passesBeneath | Fort Point Channel NERFINISHED ⓘ |
| roadType | Interstate Highway ⓘ |
| startPoint | South Boston NERFINISHED ⓘ |
| structureType | subaqueous tunnel ⓘ |
| usedFor | vehicular traffic ⓘ |
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: Fort Point Channel Tunnel Description of subject: The Fort Point Channel Tunnel is an underwater highway tunnel in Boston that carries Interstate 90 beneath the Fort Point Channel as part of the city’s Big Dig infrastructure.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.