East Bay Regional Park District
E430449
East Bay Regional Park District is a special regional agency that manages and preserves a large network of public parks, trails, and open spaces in the San Francisco Bay Area’s East Bay region.
All labels observed (7)
How this entity was disambiguated
This entity first appeared as the object of triple T4316750 — 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: East Bay Regional Park District Context triple: [Carquinez Strait Regional Shoreline, operator, East Bay Regional Park District]
-
A.
Redwood Regional Park
Redwood Regional Park is a large East Bay regional park in the Oakland hills known for its extensive redwood forests, hiking and biking trails, and scenic natural landscapes.
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B.
San Mateo County Parks Department
The San Mateo County Parks Department is the local government agency responsible for managing and maintaining San Mateo County’s system of regional parks, trails, and recreation areas.
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C.
San Francisco park system
The San Francisco park system is the network of public parks, open spaces, and recreational areas managed by the city of San Francisco, known for its diverse landscapes, iconic views, and extensive urban green spaces.
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D.
Briones Regional Park
Briones Regional Park is a large East Bay regional park in the hills of central Contra Costa County, California, known for its open grasslands, oak woodlands, and extensive hiking and equestrian trails.
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E.
Lomond Hills Regional Park
Lomond Hills Regional Park is a protected natural area in Fife, Scotland, known for its scenic upland landscapes, walking trails, and wildlife habitats around the Lomond Hills.
- 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: East Bay Regional Park District Target entity description: East Bay Regional Park District is a special regional agency that manages and preserves a large network of public parks, trails, and open spaces in the San Francisco Bay Area’s East Bay region.
-
A.
Redwood Regional Park
Redwood Regional Park is a large East Bay regional park in the Oakland hills known for its extensive redwood forests, hiking and biking trails, and scenic natural landscapes.
-
B.
San Mateo County Parks Department
The San Mateo County Parks Department is the local government agency responsible for managing and maintaining San Mateo County’s system of regional parks, trails, and recreation areas.
-
C.
San Francisco park system
The San Francisco park system is the network of public parks, open spaces, and recreational areas managed by the city of San Francisco, known for its diverse landscapes, iconic views, and extensive urban green spaces.
-
D.
Briones Regional Park
Briones Regional Park is a large East Bay regional park in the hills of central Contra Costa County, California, known for its open grasslands, oak woodlands, and extensive hiking and equestrian trails.
-
E.
Lomond Hills Regional Park
Lomond Hills Regional Park is a protected natural area in Fife, Scotland, known for its scenic upland landscapes, walking trails, and wildlife habitats around the Lomond Hills.
- F. None of above. chosen
Statements (64)
| Predicate | Object |
|---|---|
| instanceOf |
government agency
ⓘ
park district ⓘ special district ⓘ |
| boardMembersElectedBy | voters of the district ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| electoralSystem | ward-based elections ⓘ |
| employs |
maintenance staff
ⓘ
naturalists ⓘ park rangers ⓘ |
| foundedBy |
voters of Alameda County
ⓘ
voters of Contra Costa County ⓘ |
| fundedBy |
bond measures
ⓘ
grants ⓘ parcel taxes ⓘ property taxes ⓘ user fees ⓘ |
| governingBody | Board of Directors of the East Bay Regional Park District NERFINISHED ⓘ |
| hasJurisdiction |
parks in Alameda County, California
ⓘ
parks in Contra Costa County, California ⓘ |
| hasMotto | Healthy Parks, Healthy People NERFINISHED ⓘ |
| headquartersLocation | Oakland, California NERFINISHED ⓘ |
| inception | 1934 ⓘ |
| legalForm | special regional agency ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
East Bay NERFINISHED ⓘ San Francisco Bay Area ⓘ |
| maintains |
campgrounds
ⓘ
lakes and reservoirs ⓘ open space areas ⓘ picnic areas ⓘ regional parks ⓘ regional trails ⓘ shoreline parks ⓘ visitor centers ⓘ wildlife preserves ⓘ |
| numberOfBoardMembers | 7 ⓘ |
| offers |
environmental education programs
ⓘ
public safety services in parks ⓘ recreational programs ⓘ |
| operates |
Anthony Chabot Regional Park
NERFINISHED
ⓘ
Bay Trail segments in the East Bay ⓘ Black Diamond Mines Regional Preserve NERFINISHED ⓘ Briones Regional Park NERFINISHED ⓘ Coyote Hills Regional Park NERFINISHED ⓘ Del Valle Regional Park NERFINISHED ⓘ Iron Horse Regional Trail NERFINISHED ⓘ Lake Chabot Regional Park NERFINISHED ⓘ Las Trampas Regional Wilderness NERFINISHED ⓘ Martin Luther King Jr. Regional Shoreline NERFINISHED ⓘ Mission Peak Regional Preserve NERFINISHED ⓘ Ohlone Wilderness Trail NERFINISHED ⓘ Point Isabel Regional Shoreline NERFINISHED ⓘ Point Pinole Regional Shoreline NERFINISHED ⓘ Redwood Regional Park NERFINISHED ⓘ Sunol Regional Wilderness NERFINISHED ⓘ Tilden Regional Park NERFINISHED ⓘ |
| operatesInAdministrativeTerritory |
Alameda County, California
NERFINISHED
ⓘ
Contra Costa County, California NERFINISHED ⓘ |
| purpose |
environmental education
ⓘ
habitat protection ⓘ land conservation ⓘ park management ⓘ recreation ⓘ |
| website | https://www.ebparks.org ⓘ |
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: East Bay Regional Park District Description of subject: East Bay Regional Park District is a special regional agency that manages and preserves a large network of public parks, trails, and open spaces in the San Francisco Bay Area’s East Bay region.
Referenced by (39)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
East Bay regional parks system
this entity surface form:
East Bay Regional Park District system
this entity surface form:
East Bay Regional Park District system
this entity surface form:
East Bay Regional Park District (nearby lands and connections)
this entity surface form:
East Bay Regional Park District system
this entity surface form:
East Bay Regional Park District Board of Directors
this entity surface form:
East Bay Regional Park District system
this entity surface form:
East Bay Regional Park system
this entity surface form:
East Bay Regional Park District system
this entity surface form:
East Bay Regional Park system
this entity surface form:
East Bay Regional Park District system
this entity surface form:
East Bay Regional Park District (for state park areas)
this entity surface form:
East Bay Regional Park District system