Dumbarton Express
E1041502
Dumbarton Express is a regional bus service in the San Francisco Bay Area that provides transbay public transit across the Dumbarton Bridge, linking communities in the East Bay and the Peninsula.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Dumbarton Express canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13455036 — 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: Dumbarton Express Context triple: [Union City Transit, connectsWith, Dumbarton Express]
-
A.
Dumbarton’s Drums
Dumbarton’s Drums is a traditional Scottish military march closely associated with the Royal Scots regiment and Scottish martial heritage.
-
B.
The Bhoys
The Bhoys is a popular nickname for Celtic F.C., the Glasgow-based Scottish football club renowned for its passionate support and historic success.
-
C.
Dumbarton
Dumbarton is a historic Scottish town on the River Clyde known for its prominent role in shipbuilding and maritime industry.
-
D.
Trossachs
The Trossachs is a scenic region of lochs, forests, and hills in the Scottish Highlands, often celebrated as the "Highlands in miniature" and known for its natural beauty and outdoor recreation.
-
E.
Partick Cross
Partick Cross is a historic area and road junction in Glasgow, Scotland, situated near the River Kelvin and the University of Glasgow in the city’s West End.
- 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: Dumbarton Express Target entity description: Dumbarton Express is a regional bus service in the San Francisco Bay Area that provides transbay public transit across the Dumbarton Bridge, linking communities in the East Bay and the Peninsula.
-
A.
Dumbarton’s Drums
Dumbarton’s Drums is a traditional Scottish military march closely associated with the Royal Scots regiment and Scottish martial heritage.
-
B.
The Bhoys
The Bhoys is a popular nickname for Celtic F.C., the Glasgow-based Scottish football club renowned for its passionate support and historic success.
-
C.
Dumbarton
Dumbarton is a historic Scottish town on the River Clyde known for its prominent role in shipbuilding and maritime industry.
-
D.
Trossachs
The Trossachs is a scenic region of lochs, forests, and hills in the Scottish Highlands, often celebrated as the "Highlands in miniature" and known for its natural beauty and outdoor recreation.
-
E.
Partick Cross
Partick Cross is a historic area and road junction in Glasgow, Scotland, situated near the River Kelvin and the University of Glasgow in the city’s West End.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
bus service
ⓘ
public transit system ⓘ regional bus service ⓘ |
| connectsMode |
Bay Area Rapid Transit (BART)
NERFINISHED
ⓘ
Caltrain NERFINISHED ⓘ local bus systems ⓘ regional rail services ⓘ |
| connectsRegion |
East Bay
NERFINISHED
ⓘ
San Francisco Peninsula NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| crosses | Dumbarton Bridge NERFINISHED ⓘ |
| fareSystem | public transit fare ⓘ |
| hasAccessibility | wheelchair-accessible vehicles ⓘ |
| hasRouteType | transbay route ⓘ |
| hasServicePattern | fixed-route service ⓘ |
| isPartOf | Bay Area regional transit network NERFINISHED ⓘ |
| locatedInMetropolitanArea | San Francisco Bay Area ⓘ |
| modeOfTransport | bus ⓘ |
| operatesIn |
East Bay
NERFINISHED
ⓘ
Peninsula NERFINISHED ⓘ San Francisco Bay Area NERFINISHED ⓘ |
| operatesOnInfrastructure | Dumbarton Bridge NERFINISHED ⓘ |
| primaryFunction | link communities across the Dumbarton Bridge ⓘ |
| providesServiceType | transbay public transit ⓘ |
| serviceAreaIncludes |
Alameda County
NERFINISHED
ⓘ
San Mateo County NERFINISHED ⓘ |
| serviceType | commuter bus service ⓘ |
| state |
California, United States
ⓘ
surface form:
California
|
| targetRiders |
commuters
ⓘ
general public ⓘ |
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: Dumbarton Express Description of subject: Dumbarton Express is a regional bus service in the San Francisco Bay Area that provides transbay public transit across the Dumbarton Bridge, linking communities in the East Bay and the Peninsula.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.