Lake Anza
E854763
Lake Anza is a popular man-made swimming and recreation lake nestled in the Berkeley Hills of the San Francisco Bay Area.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lake Anza canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10121055 — 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: Lake Anza Context triple: [Tilden Regional Park, hasPart, Lake Anza]
-
A.
Lake Miwok
Lake Miwok is an extinct Native American language formerly spoken by the Miwok people around Clear Lake in Northern California.
-
B.
Santa Margarita Lake
Santa Margarita Lake is a reservoir and regional park in San Luis Obispo County, California, popular for fishing, boating, camping, and wildlife viewing.
-
C.
San Roque Lake
San Roque Lake is a large artificial reservoir in Argentina’s Córdoba Province, known for supplying water to nearby cities and serving as a major center for tourism and water sports.
-
D.
Lake Lucero
Lake Lucero is a seasonal, gypsum-rich playa lake in New Mexico whose evaporating waters help form the brilliant white sand dunes of White Sands National Park.
-
E.
Lago Verde
Lago Verde is a scenic mountain lake in southern Chile, known for its clear green waters and forested surroundings within Huerquehue National Park.
- 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: Lake Anza Target entity description: Lake Anza is a popular man-made swimming and recreation lake nestled in the Berkeley Hills of the San Francisco Bay Area.
-
A.
Lake Miwok
Lake Miwok is an extinct Native American language formerly spoken by the Miwok people around Clear Lake in Northern California.
-
B.
Santa Margarita Lake
Santa Margarita Lake is a reservoir and regional park in San Luis Obispo County, California, popular for fishing, boating, camping, and wildlife viewing.
-
C.
San Roque Lake
San Roque Lake is a large artificial reservoir in Argentina’s Córdoba Province, known for supplying water to nearby cities and serving as a major center for tourism and water sports.
-
D.
Lake Lucero
Lake Lucero is a seasonal, gypsum-rich playa lake in New Mexico whose evaporating waters help form the brilliant white sand dunes of White Sands National Park.
-
E.
Lago Verde
Lago Verde is a scenic mountain lake in southern Chile, known for its clear green waters and forested surroundings within Huerquehue National Park.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
artificial lake
ⓘ
swimming area ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| hasActivity |
non-motorized boating
ⓘ
sunbathing ⓘ wading ⓘ |
| hasFacility |
lifeguard-supervised swim area
ⓘ
parking lot ⓘ picnic areas ⓘ restrooms ⓘ sandy beach ⓘ |
| hasRegulation |
no lifeguard service outside posted hours
ⓘ
swimming allowed only in designated areas ⓘ |
| hasShoreFeature |
trails around the lake
ⓘ
wooded hillsides ⓘ |
| hasUse |
hiking access
ⓘ
picnicking ⓘ recreation ⓘ swimming ⓘ |
| isManMade | true ⓘ |
| locatedIn |
Alameda County, California
ⓘ
linked to:
Alameda County
Berkeley Hills ⓘ Berkeley, California ⓘ
linked to:
Berkeley
San Francisco Bay Area ⓘ |
| locatedInProtectedArea | Tilden Regional Park ⓘ |
| managedBy | East Bay Regional Park District ⓘ |
| near |
city of Berkeley
ⓘ
linked to:
City of Berkeley
|
| partOf |
East Bay Regional Park District system
ⓘ
linked to:
East Bay Regional Park District
|
| region | Northern California ⓘ |
| waterType | freshwater ⓘ |
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: Lake Anza Description of subject: Lake Anza is a popular man-made swimming and recreation lake nestled in the Berkeley Hills of the San Francisco Bay Area.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.