Fontana, California
E53963
Fontana, California is a large suburban city in San Bernardino County known for its logistics hubs, industrial centers, and proximity to major Southern California freeways.
All labels observed (6)
| Label | Occurrences |
|---|---|
| Fontana, California canonical | 23 |
| Fontana | 10 |
| Fontana, California, United States | 4 |
| City of Fontana | 2 |
| City of Fontana, California | 1 |
| city of Fontana, California | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T273938 — 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: Fontana, California Context triple: [Inland Empire, majorCity, Fontana, California]
-
A.
Escondido
Escondido is a city in northern San Diego County, California, known as one of the region’s older inland communities with a mix of suburban neighborhoods, agriculture, and historic downtown areas.
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B.
Irvine
Irvine is a master-planned city in Orange County, California, known for its affluent residential communities, strong public schools, and concentration of technology and education industries.
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C.
San Bernardino
San Bernardino is a major inland city in Southern California known as a regional transportation hub and gateway to the Inland Empire.
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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.
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E.
Santa Ana
Santa Ana is a major city in Orange County, California, known as a dense urban and governmental center within the Greater Los Angeles metropolitan area.
- 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: Fontana, California Target entity description: Fontana, California is a large suburban city in San Bernardino County known for its logistics hubs, industrial centers, and proximity to major Southern California freeways.
-
A.
Escondido
Escondido is a city in northern San Diego County, California, known as one of the region’s older inland communities with a mix of suburban neighborhoods, agriculture, and historic downtown areas.
-
B.
Irvine
Irvine is a master-planned city in Orange County, California, known for its affluent residential communities, strong public schools, and concentration of technology and education industries.
-
C.
San Bernardino
San Bernardino is a major inland city in Southern California known as a regional transportation hub and gateway to the Inland Empire.
-
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.
Santa Ana
Santa Ana is a major city in Orange County, California, known as a dense urban and governmental center within the Greater Los Angeles metropolitan area.
- F. None of above. chosen
Statements (47)
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: Fontana, California Description of subject: Fontana, California is a large suburban city in San Bernardino County known for its logistics hubs, industrial centers, and proximity to major Southern California freeways.
Referenced by (41)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Fontana, California
subject linked to:
Inland Empire region of California
linked to: Fontana, California
linked to: Fontana, California
Superior Court of California, County of San Bernardino
→
hasCourthouseLocation
→
Fontana, California
ⓘ
linked to: Fontana, California
linked to: Fontana, California
linked to: Fontana, California
linked to: Fontana, California
linked to: Fontana, California
linked to: Fontana, California
linked to: Fontana, California
subject linked to:
Fontana Municipal Airport (historic, closed)
subject linked to:
Fontana Municipal Airport (historic, closed)
linked to: Fontana, California
linked to: Fontana, California
linked to: Fontana, California
linked to: Fontana, California
linked to: Fontana, California
linked to: Fontana, California
linked to: Fontana, California
linked to: Fontana, California
subject linked to:
State Route 210