Chōfu Airport
E418503
Chōfu Airport is a regional airport in Tokyo, Japan, primarily serving domestic commuter and charter flights, including services to the Izu Islands.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Chōfu Airport canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T4127114 — 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: Chōfu Airport Context triple: [Chōfu, hasFacility, Chōfu Airport]
-
A.
Okadama Airport
Okadama Airport is a regional airport in Sapporo, Japan, primarily serving domestic and general aviation flights.
-
B.
Izumo Airport
Izumo Airport is a regional airport in Shimane Prefecture, Japan, providing domestic air services that connect the Izumo area with major Japanese cities.
-
C.
Tajima Airport
Tajima Airport is a regional airport in northern Hyogo Prefecture, Japan, primarily serving domestic flights and connecting the Tajima area with major Japanese cities.
-
D.
Itami Airport
Itami Airport is a major domestic airport serving the Osaka metropolitan area in Japan.
-
E.
Miyako Airport
Miyako Airport is a regional airport serving Miyako Island in Japan’s Okinawa Prefecture, handling domestic flights and connecting the island to major Japanese cities.
- 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: Chōfu Airport Target entity description: Chōfu Airport is a regional airport in Tokyo, Japan, primarily serving domestic commuter and charter flights, including services to the Izu Islands.
-
A.
Okadama Airport
Okadama Airport is a regional airport in Sapporo, Japan, primarily serving domestic and general aviation flights.
-
B.
Izumo Airport
Izumo Airport is a regional airport in Shimane Prefecture, Japan, providing domestic air services that connect the Izumo area with major Japanese cities.
-
C.
Tajima Airport
Tajima Airport is a regional airport in northern Hyogo Prefecture, Japan, primarily serving domestic flights and connecting the Tajima area with major Japanese cities.
-
D.
Itami Airport
Itami Airport is a major domestic airport serving the Osaka metropolitan area in Japan.
-
E.
Miyako Airport
Miyako Airport is a regional airport serving Miyako Island in Japan’s Okinawa Prefecture, handling domestic flights and connecting the island to major Japanese cities.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
airport
ⓘ
regional airport ⓘ |
| cityServed | Tokyo ⓘ |
| country | Japan ⓘ |
| elevationFeet | 144 ⓘ |
| elevationMeters | 44 ⓘ |
| hasAccident | Chōfu Airport Piper PA-46 crash (2015) ⓘ |
| hasAirline |
New Central Airservice
ⓘ
Toho Air Service ⓘ |
| hasDestination |
Aogashima Heliport
NERFINISHED
ⓘ
Hachijojima Airport NERFINISHED ⓘ Kōzushima Airport NERFINISHED ⓘ Mikurajima Airport NERFINISHED ⓘ Miyakejima Airport NERFINISHED ⓘ Niijima Airport NERFINISHED ⓘ Ogasawara (charter/heli) routes ⓘ Oshima Airport NERFINISHED ⓘ |
| hasHelipad | yes ⓘ |
| hasTerminal | single passenger terminal ⓘ |
| IATACode | none ⓘ |
| ICAOCode | RJTF ⓘ |
| locatedIn |
Chōfu, Tokyo
NERFINISHED
ⓘ
Honshu ⓘ Kantō region ⓘ Tokyo Prefecture ⓘ
surface form:
Tokyo Metropolis
|
| near |
Ajinomoto Stadium
ⓘ
Fuchu-no-Mori Park ⓘ
surface form:
Musashino no Mori Park
|
| opened | 1941 ⓘ |
| operator | Tokyo Metropolitan Government ⓘ |
| owner | Tokyo Metropolitan Government ⓘ |
| postwarUse | civil aviation ⓘ |
| primaryUse |
charter flights
ⓘ
domestic commuter flights ⓘ |
| publicTransportAccess |
bus connections from Chōfu Station
ⓘ
bus connections from Tama Station ⓘ |
| regionServed |
Izu Islands
NERFINISHED
ⓘ
Ogasawara Islands NERFINISHED ⓘ |
| runwayCount | 1 ⓘ |
| runwayDesignation | 17/35 ⓘ |
| runwayLengthMeters | 800 ⓘ |
| runwaySurface | asphalt ⓘ |
| serves |
Izu Islands
NERFINISHED
ⓘ
Tokyo ⓘ |
| timezone | Japan Standard Time ⓘ |
| usedAs | military airfield ⓘ |
| usedBy |
Imperial Japanese Army Air Service
ⓘ
United States Army Air Forces ⓘ |
| UTCOffset | +09:00 ⓘ |
| website | https://www.kouwan.metro.tokyo.lg.jp/rito/chofu/ ⓘ |
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: Chōfu Airport Description of subject: Chōfu Airport is a regional airport in Tokyo, Japan, primarily serving domestic commuter and charter flights, including services to the Izu Islands.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Chōfu