San Bruno Mountain
E234978
San Bruno Mountain is a prominent ridge in northern San Mateo County, California, known for its biodiversity, endangered butterfly habitats, and panoramic views of the San Francisco Bay Area.
All labels observed (2)
| Label | Occurrences |
|---|---|
| San Bruno Mountain canonical | 3 |
| San Bruno Mountain, California | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1972356 — 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 Bruno Mountain Context triple: [Daly City, locatedNear, San Bruno Mountain]
-
A.
San Rafael Hills
San Rafael Hills is a small mountain range in Los Angeles County, California, forming part of the Transverse Ranges and overlooking communities such as Pasadena and Glendale.
-
B.
Monte Sereno
Monte Sereno is a small, affluent residential city in California’s Silicon Valley, known for its wooded hillsides, low-density housing, and lack of commercial development.
-
C.
San Mateo Mountains
The San Mateo Mountains are a rugged, forested mountain range in central New Mexico known for their volcanic geology, wildlife habitat, and outdoor recreation opportunities.
-
D.
Santa Rosa Mountains
The Santa Rosa Mountains are a rugged desert mountain range in Southern California known for their dramatic canyons, diverse wildlife, and cultural significance to Native American communities.
-
E.
San Francisco Mountain
San Francisco Mountain is a volcanic mountain massif in northern Arizona that forms the highest mountain range in the state and includes Humphreys Peak as its tallest summit.
- 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 Bruno Mountain Target entity description: San Bruno Mountain is a prominent ridge in northern San Mateo County, California, known for its biodiversity, endangered butterfly habitats, and panoramic views of the San Francisco Bay Area.
-
A.
San Rafael Hills
San Rafael Hills is a small mountain range in Los Angeles County, California, forming part of the Transverse Ranges and overlooking communities such as Pasadena and Glendale.
-
B.
Monte Sereno
Monte Sereno is a small, affluent residential city in California’s Silicon Valley, known for its wooded hillsides, low-density housing, and lack of commercial development.
-
C.
San Mateo Mountains
The San Mateo Mountains are a rugged, forested mountain range in central New Mexico known for their volcanic geology, wildlife habitat, and outdoor recreation opportunities.
-
D.
Santa Rosa Mountains
The Santa Rosa Mountains are a rugged desert mountain range in Southern California known for their dramatic canyons, diverse wildlife, and cultural significance to Native American communities.
-
E.
San Francisco Mountain
San Francisco Mountain is a volcanic mountain massif in northern Arizona that forms the highest mountain range in the state and includes Humphreys Peak as its tallest summit.
- F. None of above. chosen
Statements (49)
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 Bruno Mountain Description of subject: San Bruno Mountain is a prominent ridge in northern San Mateo County, California, known for its biodiversity, endangered butterfly habitats, and panoramic views of the San Francisco Bay Area.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
San Bruno Mountain, California
subject surface form:
Brisbane, California
subject surface form:
Brisbane, California