West Contra Costa County
E1408666
UNEXPLORED
West Contra Costa County is a subregion of Contra Costa County in the San Francisco Bay Area, encompassing several urban and suburban communities along the county’s western, bayside corridor.
All labels observed (2)
| Label | Occurrences |
|---|---|
| West Contra Costa County canonical | 3 |
| western Contra Costa County | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T19761574 — 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: West Contra Costa County Context triple: [Contra Costa College, servesRegion, West Contra Costa County]
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A.
Contra Costa County
Contra Costa County is a populous county in the San Francisco Bay Area known for its suburban communities, regional parks, and role as a residential and industrial hub east of Oakland and San Francisco.
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B.
Alameda County
Alameda County is a populous and diverse county in the San Francisco Bay Area that includes cities such as Oakland and Berkeley.
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C.
San Francisco County
San Francisco County is a densely populated, culturally diverse urban county on the tip of the San Francisco Peninsula, encompassing the city of San Francisco and serving as a major economic and technological hub in California.
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D.
Solano County
Solano County is a county in the San Francisco Bay Area–Sacramento Valley region known for its mix of suburban communities, agriculture, and key transportation corridors.
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E.
Santa Clara County
Santa Clara County is a populous and economically significant county in California’s Silicon Valley, home to major technology companies and cities such as San Jose.
- 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: West Contra Costa County Target entity description: West Contra Costa County is a subregion of Contra Costa County in the San Francisco Bay Area, encompassing several urban and suburban communities along the county’s western, bayside corridor.
-
A.
Contra Costa County
Contra Costa County is a populous county in the San Francisco Bay Area known for its suburban communities, regional parks, and role as a residential and industrial hub east of Oakland and San Francisco.
-
B.
Alameda County
Alameda County is a populous and diverse county in the San Francisco Bay Area that includes cities such as Oakland and Berkeley.
-
C.
San Francisco County
San Francisco County is a densely populated, culturally diverse urban county on the tip of the San Francisco Peninsula, encompassing the city of San Francisco and serving as a major economic and technological hub in California.
-
D.
Solano County
Solano County is a county in the San Francisco Bay Area–Sacramento Valley region known for its mix of suburban communities, agriculture, and key transportation corridors.
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E.
Santa Clara County
Santa Clara County is a populous and economically significant county in California’s Silicon Valley, home to major technology companies and cities such as San Jose.
- F. None of above. chosen
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: West Contra Costa County