San Luis Reservoir
E64907
San Luis Reservoir is a large artificial lake in California that serves as a major water storage facility for irrigation and municipal use in the state’s Central Valley.
All labels observed (6)
How this entity was disambiguated
This entity first appeared as the object of triple T474339 — 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: San Luis Reservoir Context triple: [Central Valley Project, includes, San Luis Reservoir]
-
A.
Hollywood Reservoir
Hollywood Reservoir is a man-made lake in the Hollywood Hills of Los Angeles, known for its scenic walking paths and iconic views of the Hollywood Sign.
-
B.
Lake Mead
Lake Mead is a large man-made reservoir on the Colorado River in the southwestern United States, known for supplying water and hydroelectric power to millions of people in the region.
-
C.
Laguna del Condado
Laguna del Condado is a coastal lagoon in the Condado district of San Juan, Puerto Rico, known for its calm waters, urban shoreline, and recreational activities like kayaking and paddleboarding.
-
D.
Lake Elsinore
Lake Elsinore is a city in Riverside County, California, known for its large natural freshwater lake, recreational activities, and proximity to major Southern California transportation routes.
-
E.
Folsom Dam
Folsom Dam is a large concrete dam on the American River in California that provides flood control, water storage, and hydroelectric power for the Sacramento region.
- 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: San Luis Reservoir Target entity description: San Luis Reservoir is a large artificial lake in California that serves as a major water storage facility for irrigation and municipal use in the state’s Central Valley.
-
A.
Hollywood Reservoir
Hollywood Reservoir is a man-made lake in the Hollywood Hills of Los Angeles, known for its scenic walking paths and iconic views of the Hollywood Sign.
-
B.
Lake Mead
Lake Mead is a large man-made reservoir on the Colorado River in the southwestern United States, known for supplying water and hydroelectric power to millions of people in the region.
-
C.
Laguna del Condado
Laguna del Condado is a coastal lagoon in the Condado district of San Juan, Puerto Rico, known for its calm waters, urban shoreline, and recreational activities like kayaking and paddleboarding.
-
D.
Lake Elsinore
Lake Elsinore is a city in Riverside County, California, known for its large natural freshwater lake, recreational activities, and proximity to major Southern California transportation routes.
-
E.
Folsom Dam
Folsom Dam is a large concrete dam on the American River in California that provides flood control, water storage, and hydroelectric power for the Sacramento region.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
artificial lake
ⓘ
reservoir ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| climate | semi-arid ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| createdBy | San Luis Dam ⓘ |
| damType | earthfill dam ⓘ |
| elevation | about 544 feet above sea level ⓘ |
| hasFishingSpecies |
catfish
ⓘ
crappie ⓘ largemouth bass ⓘ striped bass ⓘ |
| hasPart |
Los Banos Creek Reservoir (nearby associated facility)
ⓘ
O’Neill Forebay ⓘ |
| inception | 1960s ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Central Valley ⓘ |
| locatedInAdministrativeEntity |
Merced County
ⓘ
surface form:
Merced County, California
Santa Clara County ⓘ
surface form:
Santa Clara County, California
|
| locatedInProtectedArea |
San Luis Reservoir
self-linksurface differs
ⓘ
surface form:
San Luis Reservoir State Recreation Area
|
| locatedNear |
Los Banos, California
ⓘ
Pacheco Pass ⓘ |
| locatedOnRiver | San Luis Creek ⓘ |
| managesWaterFor |
Central Valley cities
ⓘ
San Joaquin Valley agriculture ⓘ |
| maximumCapacity | about 2,000,000 acre-feet ⓘ |
| namedAfter | San Luis Creek ⓘ |
| nearbyHighway | California State Route 152 ⓘ |
| opened | 1967 ⓘ |
| operator |
California Department of Water Resources
ⓘ
Bureau of Reclamation ⓘ
surface form:
United States Bureau of Reclamation
|
| partOf |
State Water Project
ⓘ
surface form:
California State Water Project
Central Valley Project ⓘ San Luis Reservoir self-linksurface differs ⓘ
surface form:
San Luis Reservoir State Recreation Area
|
| primaryFunction | offstream water storage ⓘ |
| publicAccess | yes ⓘ |
| recreationActivity |
boating
ⓘ
camping ⓘ fishing ⓘ hiking ⓘ |
| surfaceArea | about 12,700 acres ⓘ |
| use |
irrigation water storage
ⓘ
municipal water storage ⓘ recreation ⓘ |
| watercourse | San Luis Creek ⓘ |
| waterSource |
California Aqueduct
ⓘ
Delta-Mendota Canal ⓘ
surface form:
Delta–Mendota Canal
|
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: San Luis Reservoir Description of subject: San Luis Reservoir is a large artificial lake in California that serves as a major water storage facility for irrigation and municipal use in the state’s Central Valley.
Referenced by (35)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
San Luis Dam
this entity surface form:
San Luis Reservoir (jointly with federal Central Valley Project)
this entity surface form:
San Luis Reservoir State Recreation Area
this entity surface form:
San Luis Reservoir State Recreation Area
this entity surface form:
San Luis Reservoir State Recreation Area
subject surface form:
Los Banos Creek Reservoir
subject surface form:
Los Banos Creek Reservoir
Los Banos Creek Reservoir (nearby associated facility)
→
operatesInConjunctionWith
→
San Luis Reservoir
ⓘ
subject surface form:
Los Banos Creek Reservoir
this entity surface form:
San Luis Reservoir State Recreation Area
this entity surface form:
San Luis Reservoir State Recreation Area
this entity surface form:
San Luis Reservoir watershed
this entity surface form:
San Luis Reservoir system