Contra Costa County Board of Supervisors District 5
E430443
Contra Costa County Board of Supervisors District 5 is an electoral district in Contra Costa County, California, represented by a county supervisor who governs and provides services for communities in the county’s northern and northeastern areas.
All labels observed (6)
How this entity was disambiguated
This entity first appeared as the object of triple T4316630 — 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: Contra Costa County Board of Supervisors District 5 Context triple: [Bay Point, California, partOf, Contra Costa County Board of Supervisors District 5]
-
A.
Solano County Board of Supervisors
The Solano County Board of Supervisors is the elected legislative and executive body that sets policy, enacts ordinances, and oversees the administration and budget of Solano County, California.
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B.
Alameda County Board of Supervisors
The Alameda County Board of Supervisors is the elected governing body responsible for setting policy, passing local laws, and overseeing county services and budgets in Alameda County, California.
-
C.
San Mateo County Board of Supervisors
The San Mateo County Board of Supervisors is the elected governing body responsible for setting policy, passing ordinances, and overseeing the administration and budget of San Mateo County, California.
-
D.
Santa Clara County Board of Supervisors
The Santa Clara County Board of Supervisors is the elected governing body that sets policy, enacts local laws, and oversees the administration and budget of Santa Clara County, California.
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E.
Sacramento County Board of Supervisors
The Sacramento County Board of Supervisors is the elected governing body responsible for setting policy, passing local ordinances, and overseeing the administration and budget of Sacramento County, California.
- 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: Contra Costa County Board of Supervisors District 5 Target entity description: Contra Costa County Board of Supervisors District 5 is an electoral district in Contra Costa County, California, represented by a county supervisor who governs and provides services for communities in the county’s northern and northeastern areas.
-
A.
Solano County Board of Supervisors
The Solano County Board of Supervisors is the elected legislative and executive body that sets policy, enacts ordinances, and oversees the administration and budget of Solano County, California.
-
B.
Alameda County Board of Supervisors
The Alameda County Board of Supervisors is the elected governing body responsible for setting policy, passing local laws, and overseeing county services and budgets in Alameda County, California.
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C.
San Mateo County Board of Supervisors
The San Mateo County Board of Supervisors is the elected governing body responsible for setting policy, passing ordinances, and overseeing the administration and budget of San Mateo County, California.
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D.
Santa Clara County Board of Supervisors
The Santa Clara County Board of Supervisors is the elected governing body that sets policy, enacts local laws, and oversees the administration and budget of Santa Clara County, California.
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E.
Sacramento County Board of Supervisors
The Sacramento County Board of Supervisors is the elected governing body responsible for setting policy, passing local ordinances, and overseeing the administration and budget of Sacramento County, California.
- F. None of above. chosen
Statements (36)
| Predicate | Object |
|---|---|
| instanceOf |
county supervisor district
ⓘ
electoral district ⓘ |
| administers | county services in its jurisdiction ⓘ |
| appliesToJurisdiction |
northeastern Contra Costa County
ⓘ
northern Contra Costa County ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| county | Contra Costa County ⓘ |
| electoralCollege | Contra Costa County electorate ⓘ |
| electoralType | local electoral district ⓘ |
| elects | Contra Costa County Supervisor for District 5 ⓘ |
| governingBody | Contra Costa County Board of Supervisors ⓘ |
| governmentalJurisdiction |
Contra Costa County government
ⓘ
linked to:
Contra Costa County Board of Supervisors
|
| governmentFunction |
budget oversight for county services in district
ⓘ
land use and zoning decisions within district ⓘ policy making for county matters within district ⓘ |
| hasBoundaryWithin | geographic area of Contra Costa County ⓘ |
| hasRole |
local government representation
ⓘ
service delivery jurisdiction ⓘ |
| hasVotingSystem | single-member district ⓘ |
| higherLevelGovernment |
State of California
ⓘ
linked to:
California, United States
United States federal government ⓘ
linked to:
United States government
|
| jurisdictionType | supervisorial district ⓘ |
| languageOfAdministration | English ⓘ |
| legalSystem | California law ⓘ |
| levelOfGovernment | county ⓘ |
| locatedIn |
California
ⓘ
linked to:
California, United States
Contra Costa County ⓘ United States ⓘ
linked to:
United States of America
|
| officeHolderTitle | Contra Costa County Supervisor, District 5 ⓘ |
| officeTypeElected | county supervisor ⓘ |
| partOf | Contra Costa County Board of Supervisors ⓘ |
| positionInStructure | one of five supervisorial districts of Contra Costa County ⓘ |
| representedBy | Contra Costa County Supervisor for District 5 ⓘ |
| represents |
residents of northeastern Contra Costa County
ⓘ
residents of northern Contra Costa County ⓘ |
| state |
California
ⓘ
linked to:
California, United States
|
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: Contra Costa County Board of Supervisors District 5 Description of subject: Contra Costa County Board of Supervisors District 5 is an electoral district in Contra Costa County, California, represented by a county supervisor who governs and provides services for communities in the county’s northern and northeastern areas.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Contra Costa County Board of Supervisors District 5
subject linked to:
Kensington
linked to: Contra Costa County Board of Supervisors District 5
linked to: Contra Costa County Board of Supervisors District 5
Contra Costa County Board of Supervisors District 5
→
officeHolderTitle
→
Contra Costa County Supervisor, District 5
ⓘ
linked to: Contra Costa County Board of Supervisors District 5
Contra Costa County Board of Supervisors District 5
→
elects
→
Contra Costa County Supervisor for District 5
ⓘ
linked to: Contra Costa County Board of Supervisors District 5
linked to: Contra Costa County Board of Supervisors District 5