San Bruno, California, United States
E79164
San Bruno is a small city in San Mateo County, California, best known in recent years as the home of YouTube’s corporate headquarters.
All labels observed (2)
| Label | Occurrences |
|---|---|
| San Bruno, California, United States canonical | 5 |
| San Bruno, California | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T122605 — 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, California, United States Context triple: [YouTube, headquartersLocation, San Bruno, California, United States]
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A.
Menlo Park, California
Menlo Park, California is a city in Silicon Valley known as a hub for technology and venture capital, home to major research institutions and tech companies.
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B.
Palo Alto, California
Palo Alto, California is a major Silicon Valley city known for its role as a global technology and innovation hub and as the home of Stanford University.
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C.
Los Altos Hills, California, United States
Los Altos Hills, California, United States is an affluent, primarily residential town in Silicon Valley known for its large estates, open space, and association with prominent technology and business figures.
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D.
Redwood City, California
Redwood City, California is a city on the San Francisco Peninsula in Silicon Valley, known for its historic downtown and role as the county seat of San Mateo County.
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E.
South San Francisco
South San Francisco is a city in northern San Mateo County, California, known for its industrial roots, biotech industry presence, and location just south of San Francisco.
- 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, California, United States Target entity description: San Bruno is a small city in San Mateo County, California, best known in recent years as the home of YouTube’s corporate headquarters.
-
A.
Menlo Park, California
Menlo Park, California is a city in Silicon Valley known as a hub for technology and venture capital, home to major research institutions and tech companies.
-
B.
Palo Alto, California
Palo Alto, California is a major Silicon Valley city known for its role as a global technology and innovation hub and as the home of Stanford University.
-
C.
Los Altos Hills, California, United States
Los Altos Hills, California, United States is an affluent, primarily residential town in Silicon Valley known for its large estates, open space, and association with prominent technology and business figures.
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D.
Redwood City, California
Redwood City, California is a city on the San Francisco Peninsula in Silicon Valley, known for its historic downtown and role as the county seat of San Mateo County.
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E.
South San Francisco
South San Francisco is a city in northern San Mateo County, California, known for its industrial roots, biotech industry presence, and location just south of San Francisco.
- 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, California, United States Description of subject: San Bruno is a small city in San Mateo County, California, best known in recent years as the home of YouTube’s corporate headquarters.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: San Bruno, California, United States
linked to: San Bruno, California, United States
subject linked to:
Narita, Chiba Prefecture, Japan