San Mateo, California, United States
E294113
San Mateo is a city in the San Francisco Bay Area of California known for its suburban neighborhoods, strong economy, and proximity to major tech and business hubs.
All labels observed (3)
| Label | Occurrences |
|---|---|
| San Mateo, California | 52 |
| San Mateo, California, United States canonical | 14 |
| San Mateo, California area | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2155324 — 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 Mateo, California, United States Context triple: [Sean Payton, placeOfBirth, San Mateo, California, United States]
-
A.
Santa Clara, California, United States
Santa Clara is a major city in California’s Silicon Valley known for its concentration of high-tech companies, including serving as a key hub for the technology industry in the United States.
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B.
Foster City, California
Foster City, California is a planned waterfront suburb in the San Francisco Bay Area known for its extensive lagoon system, residential communities, and tech-industry presence.
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C.
San Jose, California, United States
San Jose is a major city in California’s Silicon Valley, known as a global center for technology and innovation.
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D.
Mountain View, California, United States
Mountain View, California, United States is a Silicon Valley city known as a major technology hub and home to numerous high-profile tech companies.
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E.
San Bruno, California, United States
San Bruno is a small city in San Mateo County, California, best known in recent years as the home of YouTube’s corporate headquarters.
- 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 Mateo, California, United States Target entity description: San Mateo is a city in the San Francisco Bay Area of California known for its suburban neighborhoods, strong economy, and proximity to major tech and business hubs.
-
A.
Santa Clara, California, United States
Santa Clara is a major city in California’s Silicon Valley known for its concentration of high-tech companies, including serving as a key hub for the technology industry in the United States.
-
B.
Foster City, California
Foster City, California is a planned waterfront suburb in the San Francisco Bay Area known for its extensive lagoon system, residential communities, and tech-industry presence.
-
C.
San Jose, California, United States
San Jose is a major city in California’s Silicon Valley, known as a global center for technology and innovation.
-
D.
Mountain View, California, United States
Mountain View, California, United States is a Silicon Valley city known as a major technology hub and home to numerous high-profile tech companies.
-
E.
San Bruno, California, United States
San Bruno is a small city in San Mateo County, California, best known in recent years as the home of YouTube’s corporate headquarters.
- F. None of above. chosen
Statements (50)
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 Mateo, California, United States Description of subject: San Mateo is a city in the San Francisco Bay Area of California known for its suburban neighborhoods, strong economy, and proximity to major tech and business hubs.
Referenced by (67)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
San Mateo, California
subject surface form:
David Bakhtiari
this entity surface form:
San Mateo, California
this entity surface form:
San Mateo, California
this entity surface form:
San Mateo, California
this entity surface form:
San Mateo, California
this entity surface form:
San Mateo, California
subject surface form:
CuriOdyssey
this entity surface form:
San Mateo, California
subject surface form:
CuriOdyssey
this entity surface form:
San Mateo, California
this entity surface form:
San Mateo, California
this entity surface form:
San Mateo, California
this entity surface form:
San Mateo, California