Bayview-Montalvin, California
E175298
Bayview-Montalvin is an unincorporated residential community and census-designated place in western Contra Costa County, California, located near the city of Richmond along the San Pablo Bay.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Bayview-Montalvin, California canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T797817 — 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: Bayview-Montalvin, California Context triple: [Contra Costa County, hasMajorCity, Bayview-Montalvin, California]
-
A.
Woodside, California
Woodside, California is an affluent, semi-rural town on the San Francisco Peninsula known for its large estates, equestrian culture, and proximity to Silicon Valley.
-
B.
Belmont, California
Belmont, California is a small suburban city on the San Francisco Peninsula known for its quiet residential neighborhoods, good schools, and proximity to major Bay Area tech hubs.
-
C.
Moreno Valley, California
Moreno Valley, California is a large suburban city in Riverside County known for its rapid growth, diverse population, and role as a residential and logistics hub in Southern California’s Inland Empire region.
-
D.
Daly City
Daly City is a suburban city just south of San Francisco in San Mateo County, California, known for its diverse population and role as a major residential and commercial hub in the Bay Area.
-
E.
Colfax, California
Colfax, California is a small historic Gold Rush–era town in Placer County known as a former railroad hub in the Sierra Nevada foothills.
- 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: Bayview-Montalvin, California Target entity description: Bayview-Montalvin is an unincorporated residential community and census-designated place in western Contra Costa County, California, located near the city of Richmond along the San Pablo Bay.
-
A.
Woodside, California
Woodside, California is an affluent, semi-rural town on the San Francisco Peninsula known for its large estates, equestrian culture, and proximity to Silicon Valley.
-
B.
Belmont, California
Belmont, California is a small suburban city on the San Francisco Peninsula known for its quiet residential neighborhoods, good schools, and proximity to major Bay Area tech hubs.
-
C.
Moreno Valley, California
Moreno Valley, California is a large suburban city in Riverside County known for its rapid growth, diverse population, and role as a residential and logistics hub in Southern California’s Inland Empire region.
-
D.
Daly City
Daly City is a suburban city just south of San Francisco in San Mateo County, California, known for its diverse population and role as a major residential and commercial hub in the Bay Area.
-
E.
Colfax, California
Colfax, California is a small historic Gold Rush–era town in Placer County known as a former railroad hub in the Sierra Nevada foothills.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
census-designated place
ⓘ
unincorporated community ⓘ |
| adjacentTo |
Richmond, California
ⓘ
San Pablo, California ⓘ |
| areaCode |
341
ⓘ
510 ⓘ |
| coast |
San Pablo Bay
ⓘ
surface form:
San Pablo Bay coast
|
| country |
United States of America
ⓘ
surface form:
United States
|
| county |
Contra Costa County
ⓘ
surface form:
Contra Costa County, California
|
| fipsCode | 06 (state prefix for California) ⓘ |
| gnisFeatureClass | populated place ⓘ |
| hasLocalGovernmentType | unincorporated (governed by Contra Costa County) ⓘ |
| isCensusDesignatedPlace | true ⓘ |
| isResidentialCommunity | true ⓘ |
| isUnincorporated | true ⓘ |
| locatedIn | western Contra Costa County, California ⓘ |
| locatedInMetropolitanArea |
San Francisco Bay Area
ⓘ
surface form:
San Francisco–Oakland–Berkeley, CA Metropolitan Statistical Area
|
| locatedNear | Richmond, California ⓘ |
| locatedOn | San Pablo Bay ⓘ |
| observesDaylightSavingTime |
Pacific Time Zone
ⓘ
surface form:
Pacific Daylight Time
|
| partOf | San Francisco Bay Area ⓘ |
| postalCodeType | ZIP code ⓘ |
| region | West Coast of the United States ⓘ |
| state |
California, United States
ⓘ
surface form:
California
|
| timeZone | Pacific Time Zone ⓘ |
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: Bayview-Montalvin, California Description of subject: Bayview-Montalvin is an unincorporated residential community and census-designated place in western Contra Costa County, California, located near the city of Richmond along the San Pablo Bay.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.