Alameda County
E15834
Alameda County is a populous and diverse county in the San Francisco Bay Area that includes cities such as Oakland and Berkeley.
All labels observed (7)
| Label | Occurrences |
|---|---|
| Alameda County, California | 557 |
| Alameda County canonical | 216 |
| County of Alameda | 6 |
| Alameda County, California, United States | 3 |
| Alameda County Tri-Valley | 1 |
| Alameda County region | 1 |
| Alameda County unincorporated area | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T22109 — 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: Alameda County Context triple: [Northern California, contains, Alameda County]
-
A.
San Francisco County
San Francisco County is a densely populated, culturally diverse urban county on the tip of the San Francisco Peninsula, encompassing the city of San Francisco and serving as a major economic and technological hub in California.
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B.
Sacramento County
Sacramento County is a county in Northern California that includes the state capital, Sacramento, and serves as a major political and economic hub of the region.
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C.
San Mateo County, California
San Mateo County, California is a coastal county in the San Francisco Bay Area known for its affluent communities, tech industry presence, and proximity to both San Francisco and Silicon Valley.
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D.
Santa Clara
Santa Clara is a Silicon Valley city in California known for its high-tech industry presence, Levi’s Stadium, and Santa Clara University.
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E.
Humboldt County
Humboldt County is a rural coastal county in far Northern California known for its redwood forests, rugged Pacific shoreline, and strong cannabis-growing culture.
- 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: Alameda County Target entity description: Alameda County is a populous and diverse county in the San Francisco Bay Area that includes cities such as Oakland and Berkeley.
-
A.
San Francisco County
San Francisco County is a densely populated, culturally diverse urban county on the tip of the San Francisco Peninsula, encompassing the city of San Francisco and serving as a major economic and technological hub in California.
-
B.
Sacramento County
Sacramento County is a county in Northern California that includes the state capital, Sacramento, and serves as a major political and economic hub of the region.
-
C.
San Mateo County, California
San Mateo County, California is a coastal county in the San Francisco Bay Area known for its affluent communities, tech industry presence, and proximity to both San Francisco and Silicon Valley.
-
D.
Santa Clara
Santa Clara is a Silicon Valley city in California known for its high-tech industry presence, Levi’s Stadium, and Santa Clara University.
-
E.
Humboldt County
Humboldt County is a rural coastal county in far Northern California known for its redwood forests, rugged Pacific shoreline, and strong cannabis-growing culture.
- F. None of above. chosen
Statements (51)
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: Alameda County Description of subject: Alameda County is a populous and diverse county in the San Francisco Bay Area that includes cities such as Oakland and Berkeley.
Referenced by (785)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Alameda County
linked to: Alameda County
linked to: Alameda County
linked to: Alameda County
linked to: Alameda County
subject linked to:
ACE
linked to: Alameda County
linked to: Alameda County
linked to: Alameda County
linked to: Alameda County
linked to: Alameda County
linked to: Alameda County
linked to: Alameda County
linked to: Alameda County
linked to: Alameda County
linked to: Alameda County
subject linked to:
Montclair
linked to: Alameda County
linked to: Alameda County
linked to: Alameda County
linked to: Alameda County
linked to: Alameda County
linked to: Alameda County
linked to: Alameda County
linked to: Alameda County
subject linked to:
Clark Kerr Campus (residential complex)
linked to: Alameda County
linked to: Alameda County