Fontana Municipal Airport (historic, closed)
E286779
Fontana Municipal Airport was a small general aviation airfield that once served the city of Fontana, California, before its closure and subsequent repurposing of the land.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Fontana Municipal Airport (historic, closed) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2653935 — 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 Municipal Airport (historic, closed) Context triple: [Fontana, California, hasAirport, Fontana Municipal Airport (historic, closed)]
-
A.
Riverside Municipal Airport
Riverside Municipal Airport is a public general aviation airport serving the city of Riverside, California, and the surrounding Inland Empire region.
-
B.
Chandler Municipal Airport
Chandler Municipal Airport is a public general aviation airport serving the city of Chandler, Arizona, primarily accommodating private, corporate, and flight-training aircraft.
-
C.
Palmdale Regional Airport
Palmdale Regional Airport is a public airport in Palmdale, California, known for hosting NASA’s SOFIA airborne observatory and other aerospace-related operations.
-
D.
Oceanside Municipal Airport
Oceanside Municipal Airport is a small public general aviation airport serving the coastal city of Oceanside in San Diego County, California.
-
E.
Gerald R. Ford International Airport
Gerald R. Ford International Airport is the primary commercial airport serving the Grand Rapids metropolitan area and western Michigan.
- 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 Municipal Airport (historic, closed) Target entity description: Fontana Municipal Airport was a small general aviation airfield that once served the city of Fontana, California, before its closure and subsequent repurposing of the land.
-
A.
Riverside Municipal Airport
Riverside Municipal Airport is a public general aviation airport serving the city of Riverside, California, and the surrounding Inland Empire region.
-
B.
Chandler Municipal Airport
Chandler Municipal Airport is a public general aviation airport serving the city of Chandler, Arizona, primarily accommodating private, corporate, and flight-training aircraft.
-
C.
Palmdale Regional Airport
Palmdale Regional Airport is a public airport in Palmdale, California, known for hosting NASA’s SOFIA airborne observatory and other aerospace-related operations.
-
D.
Oceanside Municipal Airport
Oceanside Municipal Airport is a small public general aviation airport serving the coastal city of Oceanside in San Diego County, California.
-
E.
Gerald R. Ford International Airport
Gerald R. Ford International Airport is the primary commercial airport serving the Grand Rapids metropolitan area and western Michigan.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
defunct airport
ⓘ
general aviation airport ⓘ municipal airport ⓘ |
| closureReason | urban development (inferred) ⓘ |
| country | United States of America ⓘ |
| hasFAAidentifier | unknown ⓘ |
| hasFormerFunction | public-use airfield ⓘ |
| hasIATAcode | no ⓘ |
| hasICAOcode | no ⓘ |
| hasRunwaySurface | asphalt (historical, inferred) ⓘ |
| historicDesignation | historic, closed airfield ⓘ |
| landUseAfterClosure | repurposed land ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Fontana, California ⓘ San Bernardino County ⓘ
surface form:
San Bernardino County, California
|
| operatedBy | City of Fontana (municipal government) ⓘ |
| partOf | local general aviation airport network in Southern California ⓘ |
| primaryUse | general aviation ⓘ |
| served |
Fontana, California
ⓘ
surface form:
city of Fontana, California
|
| servedRegion |
Inland Empire region of California
ⓘ
surface form:
Inland Empire region of Southern California
|
| status | closed ⓘ |
| transportationType | air transportation infrastructure ⓘ |
| usedFor |
flight training
ⓘ
private flying ⓘ recreational aviation ⓘ |
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 Municipal Airport (historic, closed) Description of subject: Fontana Municipal Airport was a small general aviation airfield that once served the city of Fontana, California, before its closure and subsequent repurposing of the land.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.