Sunset Tunnel
E545885
Sunset Tunnel is a rail tunnel in San Francisco that carries Muni Metro light rail trains beneath the hilly terrain between the Duboce Triangle and Inner Sunset neighborhoods.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Sunset Tunnel canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T5736174 — 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: Sunset Tunnel Context triple: [Muni Metro N Judah line, routeFeature, Sunset Tunnel]
-
A.
Bosley Tunnel
Bosley Tunnel is a historic narrowboat canal tunnel in Cheshire, England, forming part of the Macclesfield Canal navigation route.
-
B.
O'Neill Tunnel
The O'Neill Tunnel is a major highway tunnel in downtown Boston that carries Interstate 93 beneath the city as part of the Big Dig project.
-
C.
Sumner Tunnel
The Sumner Tunnel is a major vehicular tunnel in Boston that carries traffic under Boston Harbor between East Boston and downtown.
-
D.
Malinta Tunnel
Malinta Tunnel is a historic underground complex on Corregidor Island in the Philippines that served as a bomb-proof headquarters and hospital for American and Filipino forces during World War II.
-
E.
Patterson Pass Tunnel
Patterson Pass Tunnel is a key water conveyance tunnel in California that carries supplies for the State Water Project’s South Bay Aqueduct through the Diablo Range.
- 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: Sunset Tunnel Target entity description: Sunset Tunnel is a rail tunnel in San Francisco that carries Muni Metro light rail trains beneath the hilly terrain between the Duboce Triangle and Inner Sunset neighborhoods.
-
A.
Bosley Tunnel
Bosley Tunnel is a historic narrowboat canal tunnel in Cheshire, England, forming part of the Macclesfield Canal navigation route.
-
B.
O'Neill Tunnel
The O'Neill Tunnel is a major highway tunnel in downtown Boston that carries Interstate 93 beneath the city as part of the Big Dig project.
-
C.
Sumner Tunnel
The Sumner Tunnel is a major vehicular tunnel in Boston that carries traffic under Boston Harbor between East Boston and downtown.
-
D.
Malinta Tunnel
Malinta Tunnel is a historic underground complex on Corregidor Island in the Philippines that served as a bomb-proof headquarters and hospital for American and Filipino forces during World War II.
-
E.
Patterson Pass Tunnel
Patterson Pass Tunnel is a key water conveyance tunnel in California that carries supplies for the State Water Project’s South Bay Aqueduct through the Diablo Range.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
rail tunnel
ⓘ
transport infrastructure ⓘ |
| carriedBy | Muni Metro NERFINISHED ⓘ |
| city | San Francisco ⓘ |
| connects |
Duboce Triangle neighborhood
NERFINISHED
ⓘ
Inner Sunset neighborhood NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electrification | overhead lines ⓘ |
| endPoint | Cole Valley / Inner Sunset area, San Francisco NERFINISHED ⓘ |
| hasPublicTransitSystem | Muni NERFINISHED ⓘ |
| hasStructureType | single-bore tunnel ⓘ |
| isPartOfNetwork | San Francisco light rail network NERFINISHED ⓘ |
| locatedIn |
Duboce Triangle, San Francisco
NERFINISHED
ⓘ
Inner Sunset, San Francisco NERFINISHED ⓘ |
| locatedInTimeZone | Pacific Time Zone ⓘ |
| location | San Francisco, California, United States NERFINISHED ⓘ |
| operator | San Francisco Municipal Transportation Agency NERFINISHED ⓘ |
| owner | San Francisco Municipal Transportation Agency NERFINISHED ⓘ |
| partOf | Muni Metro system NERFINISHED ⓘ |
| passesUnder |
Buena Vista Heights
NERFINISHED
ⓘ
hilly terrain between Duboce Triangle and Inner Sunset ⓘ |
| primaryFunction | urban rail transit ⓘ |
| railGauge | standard gauge ⓘ |
| serves |
Cole Valley neighborhood
NERFINISHED
ⓘ
Duboce Triangle neighborhood NERFINISHED ⓘ Inner Sunset neighborhood NERFINISHED ⓘ |
| startPoint | Duboce and Church area, San Francisco NERFINISHED ⓘ |
| state |
California, United States
ⓘ
surface form:
California
|
| transportMode | light rail ⓘ |
| usedBy | Muni Metro N Judah line 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: Sunset Tunnel Description of subject: Sunset Tunnel is a rail tunnel in San Francisco that carries Muni Metro light rail trains beneath the hilly terrain between the Duboce Triangle and Inner Sunset neighborhoods.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.