Ontario, California
E47420
Ontario, California is a mid-sized Inland Empire city in San Bernardino County known for its major international airport, logistics hubs, and role as a regional commercial center in Southern California.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Ontario, California canonical | 39 |
| City of Ontario, California | 3 |
| Ontario, California, United States | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T36161 — 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: Ontario, California Context triple: [Southern California, hasMajorCity, Ontario, California]
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A.
Fair Oaks, California
Fair Oaks, California is a suburban community in Sacramento County known for its semi-rural feel, oak tree–lined neighborhoods, and proximity to the American River.
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B.
Richmond, California
Richmond, California is an industrial and residential city in the East Bay region of the San Francisco Bay Area known for its port, oil refinery, and diverse communities.
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C.
Hawthorne, California
Hawthorne, California is a city in southwestern Los Angeles County known for hosting major aerospace and technology companies, including SpaceX’s headquarters.
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D.
Oxnard, California
Oxnard, California is a coastal city in Ventura County known for its agriculture, beaches, and role as a gateway to the Channel Islands.
-
E.
Woodside, California
Woodside, California is an affluent, semi-rural town on the San Francisco Peninsula known for its large estates, equestrian culture, and proximity to Silicon Valley.
- 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: Ontario, California Target entity description: Ontario, California is a mid-sized Inland Empire city in San Bernardino County known for its major international airport, logistics hubs, and role as a regional commercial center in Southern California.
-
A.
Fair Oaks, California
Fair Oaks, California is a suburban community in Sacramento County known for its semi-rural feel, oak tree–lined neighborhoods, and proximity to the American River.
-
B.
Richmond, California
Richmond, California is an industrial and residential city in the East Bay region of the San Francisco Bay Area known for its port, oil refinery, and diverse communities.
-
C.
Hawthorne, California
Hawthorne, California is a city in southwestern Los Angeles County known for hosting major aerospace and technology companies, including SpaceX’s headquarters.
-
D.
Oxnard, California
Oxnard, California is a coastal city in Ventura County known for its agriculture, beaches, and role as a gateway to the Channel Islands.
-
E.
Woodside, California
Woodside, California is an affluent, semi-rural town on the San Francisco Peninsula known for its large estates, equestrian culture, and proximity to Silicon Valley.
- 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: Ontario, California Description of subject: Ontario, California is a mid-sized Inland Empire city in San Bernardino County known for its major international airport, logistics hubs, and role as a regional commercial center in Southern California.
Referenced by (45)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Inland Empire
this entity surface form:
Ontario, California, United States
subject surface form:
Ontario International Airport
subject surface form:
International Arrivals Facility (Ontario International Airport)
subject surface form:
Terminal 2 (Ontario International Airport)
subject surface form:
Terminal 4 (Ontario International Airport)
this entity surface form:
Ontario, California, United States
subject surface form:
California Institution for Men
this entity surface form:
Ontario, California, United States
this entity surface form:
City of Ontario, California
this entity surface form:
City of Ontario, California
this entity surface form:
City of Ontario, California