Lafayette Reservoir
E436476
Lafayette Reservoir is a popular man-made lake and recreation area in Lafayette, California, known for its hiking trails, fishing, boating, and scenic picnic spots.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lafayette Reservoir canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T4383848 — 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: Lafayette Reservoir Context triple: [Lafayette, California, hasFeature, Lafayette Reservoir]
-
A.
W. Kerr Scott Reservoir
W. Kerr Scott Reservoir is a man-made lake in North Carolina known for recreation such as boating, fishing, and camping, as well as flood control and water supply functions.
-
B.
Patterson Reservoir
Patterson Reservoir is a water storage facility in California that forms part of the State Water Project’s South Bay Aqueduct system.
-
C.
Clinton Reservoir
Clinton Reservoir is a man-made lake in West Milford, New Jersey, that serves as a water supply source and recreational area in the region.
-
D.
Tuckertown Reservoir
Tuckertown Reservoir is a man-made lake on the Yadkin River in North Carolina, primarily used for hydroelectric power generation, recreation, and wildlife habitat.
-
E.
Wilson Reservoir
Wilson Reservoir is a man-made lake on the Tennessee River in Alabama, created by Wilson Dam, that serves as a key resource for hydroelectric power, navigation, and recreation.
- 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: Lafayette Reservoir Target entity description: Lafayette Reservoir is a popular man-made lake and recreation area in Lafayette, California, known for its hiking trails, fishing, boating, and scenic picnic spots.
-
A.
W. Kerr Scott Reservoir
W. Kerr Scott Reservoir is a man-made lake in North Carolina known for recreation such as boating, fishing, and camping, as well as flood control and water supply functions.
-
B.
Patterson Reservoir
Patterson Reservoir is a water storage facility in California that forms part of the State Water Project’s South Bay Aqueduct system.
-
C.
Clinton Reservoir
Clinton Reservoir is a man-made lake in West Milford, New Jersey, that serves as a water supply source and recreational area in the region.
-
D.
Tuckertown Reservoir
Tuckertown Reservoir is a man-made lake on the Yadkin River in North Carolina, primarily used for hydroelectric power generation, recreation, and wildlife habitat.
-
E.
Wilson Reservoir
Wilson Reservoir is a man-made lake on the Tennessee River in Alabama, created by Wilson Dam, that serves as a key resource for hydroelectric power, navigation, and recreation.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
man-made lake
ⓘ
recreation area ⓘ reservoir ⓘ |
| access | day use ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| county | Contra Costa County NERFINISHED ⓘ |
| hasActivity |
boating
ⓘ
fishing ⓘ hiking ⓘ jogging ⓘ picnicking ⓘ walking ⓘ wildlife viewing ⓘ |
| hasAmenity |
boat rentals
ⓘ
drinking fountains ⓘ picnic tables ⓘ trash receptacles ⓘ |
| hasFeature |
barbecue pits
ⓘ
boat launch ⓘ fishing docks ⓘ grassy areas ⓘ parking lots ⓘ picnic areas ⓘ playground ⓘ restrooms ⓘ scenic viewpoints ⓘ |
| hasRegulation |
boating regulations apply
ⓘ
fishing regulations apply ⓘ |
| hasTrail |
paved lakeside trail
ⓘ
unpaved rim trail ⓘ |
| hasUse |
recreation
ⓘ
water storage ⓘ |
| isPopularFor |
exercise
ⓘ
family outings ⓘ nature walks ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Contra Costa County, California NERFINISHED ⓘ Lafayette, California NERFINISHED ⓘ United States of America ⓘ
surface form:
United States
|
| managedBy | East Bay Municipal Utility District NERFINISHED ⓘ |
| near |
Highway 24
NERFINISHED
ⓘ
downtown Lafayette, California ⓘ |
| operator | East Bay Municipal Utility District NERFINISHED ⓘ |
| region |
East Bay
NERFINISHED
ⓘ
San Francisco Bay Area ⓘ |
| state |
California, United States
ⓘ
surface form:
California
|
| waterBodyType | freshwater lake ⓘ |
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: Lafayette Reservoir Description of subject: Lafayette Reservoir is a popular man-made lake and recreation area in Lafayette, California, known for its hiking trails, fishing, boating, and scenic picnic spots.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Lafayette, California