Discovery Bay, California
E108605
Discovery Bay, California is a waterfront residential community in eastern Contra Costa County known for its network of man-made lagoons and access to the Sacramento–San Joaquin River Delta.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Discovery Bay, California canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T797808 — 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: Discovery Bay, California Context triple: [Contra Costa County, hasMajorCity, Discovery Bay, California]
-
A.
Bombay Beach, California
Bombay Beach, California is a small, offbeat community on the eastern shore of the Salton Sea known for its decaying resort-town remnants, outsider art installations, and stark desert landscape.
-
B.
Bay Point, California
Bay Point, California is an unincorporated suburban community in the San Francisco Bay Area known for its residential neighborhoods and proximity to the Sacramento–San Joaquin River Delta.
-
C.
Half Moon Bay, California
Half Moon Bay, California is a coastal city on the Pacific Ocean known for its scenic beaches, agriculture, and the annual Mavericks big-wave surfing event.
-
D.
Pacific Grove, California
Pacific Grove, California is a coastal city on the Monterey Peninsula known for its Victorian architecture, scenic shoreline, and annual monarch butterfly migrations.
-
E.
North Shore, California
North Shore, California is a small unincorporated community in Riverside County located along the northeastern shore of the Salton Sea in Southern 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: Discovery Bay, California Target entity description: Discovery Bay, California is a waterfront residential community in eastern Contra Costa County known for its network of man-made lagoons and access to the Sacramento–San Joaquin River Delta.
-
A.
Bombay Beach, California
Bombay Beach, California is a small, offbeat community on the eastern shore of the Salton Sea known for its decaying resort-town remnants, outsider art installations, and stark desert landscape.
-
B.
Bay Point, California
Bay Point, California is an unincorporated suburban community in the San Francisco Bay Area known for its residential neighborhoods and proximity to the Sacramento–San Joaquin River Delta.
-
C.
Half Moon Bay, California
Half Moon Bay, California is a coastal city on the Pacific Ocean known for its scenic beaches, agriculture, and the annual Mavericks big-wave surfing event.
-
D.
Pacific Grove, California
Pacific Grove, California is a coastal city on the Monterey Peninsula known for its Victorian architecture, scenic shoreline, and annual monarch butterfly migrations.
-
E.
North Shore, California
North Shore, California is a small unincorporated community in Riverside County located along the northeastern shore of the Salton Sea in Southern California.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
census-designated place
ⓘ
unincorporated community ⓘ |
| accessTo | Sacramento–San Joaquin River Delta ⓘ |
| areaCode | 925 ⓘ |
| climate | Mediterranean climate ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| county | Contra Costa County ⓘ |
| currentRole | commuter town for the Bay Area and Central Valley ⓘ |
| developmentPeriod | primarily developed in the 1960s and 1970s ⓘ |
| distanceTo |
approximately 40 miles south of Sacramento
ⓘ
approximately 60 miles east of San Francisco ⓘ |
| elevation | approximately 7 feet above sea level ⓘ |
| floodRisk | located in low-lying delta area with levees ⓘ |
| governmentType | unincorporated area governed by Contra Costa County ⓘ |
| hasCharacteristic |
planned community
ⓘ
waterfront residential community ⓘ |
| hasFeature |
country club
ⓘ
golf course ⓘ marinas ⓘ network of man-made lagoons ⓘ residential homes with private docks ⓘ waterways connected to the Sacramento–San Joaquin River Delta ⓘ |
| landUse | primarily residential ⓘ |
| localGovernance | Discovery Bay Community Services District ⓘ |
| locatedIn |
Contra Costa County
ⓘ
surface form:
Eastern Contra Costa County
Sacramento–San Joaquin River Delta ⓘ
surface form:
Sacramento–San Joaquin River Delta region
|
| locatedNear |
Brentwood, California
ⓘ
Byron, California ⓘ Tracy, California ⓘ |
| locatedOnWaterBody | artificial lagoons connected to Discovery Bay ⓘ |
| nearWaterSystem |
California State Water Project infrastructure
ⓘ
Central Valley Project infrastructure ⓘ |
| observesDaylightSavingTime |
Pacific Time Zone
ⓘ
surface form:
Pacific Daylight Time
|
| originalPurpose | recreational second-home and boating community ⓘ |
| partOf |
East Bay
ⓘ
surface form:
East Bay region
|
| postalCode | 94505 ⓘ |
| providesServices |
parks and recreation services
ⓘ
wastewater services ⓘ water services ⓘ |
| recreation |
boating
ⓘ
fishing ⓘ golf ⓘ water sports ⓘ |
| region | Northern California ⓘ |
| state |
California, United States
ⓘ
surface form:
California
|
| timeZone | Pacific Time Zone ⓘ |
| transportation | California State Route 4 ⓘ |
| waterwayType | finger canals ⓘ |
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: Discovery Bay, California Description of subject: Discovery Bay, California is a waterfront residential community in eastern Contra Costa County known for its network of man-made lagoons and access to the Sacramento–San Joaquin River Delta.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.