Calaveras Reservoir
E551219
Calaveras Reservoir is a major water storage reservoir in California’s Diablo Range that supplies drinking water to the San Francisco Bay Area.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Calaveras Reservoir canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T5754595 — 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: Calaveras Reservoir Context triple: [San Francisco Peninsula reservoir system, hasPart, Calaveras Reservoir]
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A.
Yuba Reservoir
Yuba Reservoir is a man-made lake in central Utah popular for boating, fishing, and camping.
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B.
Briones Reservoir
Briones Reservoir is a man-made lake in Contra Costa County, California, used for water supply and recreational activities such as rowing.
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C.
Martinez Reservoir
Martinez Reservoir is a man-made water storage facility in Contra Costa County, California, used for municipal and irrigation supply as part of the region’s canal and water management system.
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D.
Folsom Lake
Folsom Lake is a large man-made reservoir in Northern California known for recreation, water storage, and flood control near the Sacramento area.
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E.
Abiquiu Reservoir
Abiquiu Reservoir is a man-made lake in northern New Mexico known for its scenic desert landscape, recreational opportunities, and role in regional water storage and management.
- 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: Calaveras Reservoir Target entity description: Calaveras Reservoir is a major water storage reservoir in California’s Diablo Range that supplies drinking water to the San Francisco Bay Area.
-
A.
Yuba Reservoir
Yuba Reservoir is a man-made lake in central Utah popular for boating, fishing, and camping.
-
B.
Briones Reservoir
Briones Reservoir is a man-made lake in Contra Costa County, California, used for water supply and recreational activities such as rowing.
-
C.
Martinez Reservoir
Martinez Reservoir is a man-made water storage facility in Contra Costa County, California, used for municipal and irrigation supply as part of the region’s canal and water management system.
-
D.
Folsom Lake
Folsom Lake is a large man-made reservoir in Northern California known for recreation, water storage, and flood control near the Sacramento area.
-
E.
Abiquiu Reservoir
Abiquiu Reservoir is a man-made lake in northern New Mexico known for its scenic desert landscape, recreational opportunities, and role in regional water storage and management.
- F. None of above. chosen
Statements (42)
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: Calaveras Reservoir Description of subject: Calaveras Reservoir is a major water storage reservoir in California’s Diablo Range that supplies drinking water to the San Francisco Bay Area.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.