San Andreas Lake distribution system
E584943
The San Andreas Lake distribution system is a water supply network that conveys drinking water from San Andreas Lake and associated infrastructure to surrounding communities in the San Francisco Peninsula region.
All labels observed (1)
| Label | Occurrences |
|---|---|
| San Andreas Lake distribution system canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6315318 — 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 Andreas Lake distribution system Context triple: [San Andreas Dam, waterSourceFor, San Andreas Lake distribution system]
-
A.
Contra Loma Reservoir
Contra Loma Reservoir is a man-made lake and recreational area in Antioch, California, used for water storage, fishing, and outdoor activities.
-
B.
Los Angeles Aqueduct
The Los Angeles Aqueduct is a major early-20th-century water conveyance system that transports water from California’s Owens Valley to the city of Los Angeles, profoundly shaping the region’s growth and sparking enduring environmental and political controversies.
-
C.
Perris Dam
Perris Dam is a large earthfill embankment dam in Riverside County, California, that forms Lake Perris as part of the state’s major water storage and distribution system.
-
D.
Colorado River Aqueduct
The Colorado River Aqueduct is a major water conveyance system that transports Colorado River water across the desert to supply Southern California’s cities and agricultural areas.
-
E.
South Bay Aqueduct
South Bay Aqueduct is a major California water conveyance facility that transports water from the State Water Project to communities in the southern San Francisco Bay Area.
- 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 Andreas Lake distribution system Target entity description: The San Andreas Lake distribution system is a water supply network that conveys drinking water from San Andreas Lake and associated infrastructure to surrounding communities in the San Francisco Peninsula region.
-
A.
Contra Loma Reservoir
Contra Loma Reservoir is a man-made lake and recreational area in Antioch, California, used for water storage, fishing, and outdoor activities.
-
B.
Los Angeles Aqueduct
The Los Angeles Aqueduct is a major early-20th-century water conveyance system that transports water from California’s Owens Valley to the city of Los Angeles, profoundly shaping the region’s growth and sparking enduring environmental and political controversies.
-
C.
Perris Dam
Perris Dam is a large earthfill embankment dam in Riverside County, California, that forms Lake Perris as part of the state’s major water storage and distribution system.
-
D.
Colorado River Aqueduct
The Colorado River Aqueduct is a major water conveyance system that transports Colorado River water across the desert to supply Southern California’s cities and agricultural areas.
-
E.
South Bay Aqueduct
South Bay Aqueduct is a major California water conveyance facility that transports water from the State Water Project to communities in the southern San Francisco Bay Area.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
drinking water infrastructure
ⓘ
water supply network ⓘ |
| associatedInfrastructure |
San Andreas Lake dam
ⓘ
linked to:
San Andreas Dam
|
| associatedWith |
San Andreas Lake reservoir
ⓘ
linked to:
San Andreas Lake
|
| connectedTo | local distribution networks on the San Francisco Peninsula ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| function | transport treated water from source to consumers ⓘ |
| hasComponent |
distribution mains
ⓘ
pipelines ⓘ pumping facilities ⓘ service connections ⓘ storage facilities ⓘ valves ⓘ |
| infrastructureType | municipal water supply system ⓘ |
| locatedIn |
San Francisco Peninsula
ⓘ
San Mateo County, California ⓘ |
| medium | potable water ⓘ |
| partOf |
San Francisco Peninsula regional water supply
ⓘ
linked to:
San Francisco Peninsula reservoir system
|
| purpose | convey drinking water ⓘ |
| regionServed |
San Francisco Peninsula communities
ⓘ
linked to:
San Francisco Peninsula
|
| serves | surrounding communities in the San Francisco Peninsula region ⓘ |
| state |
California
ⓘ
linked to:
California, United States
|
| suppliesWaterFrom | San Andreas Lake ⓘ |
| usesSource | San Andreas Lake ⓘ |
| waterType | drinking water ⓘ |
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 Andreas Lake distribution system Description of subject: The San Andreas Lake distribution system is a water supply network that conveys drinking water from San Andreas Lake and associated infrastructure to surrounding communities in the San Francisco Peninsula region.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.