Ibaraki Airport
E472464
Ibaraki Airport is a regional civil airport in Ibaraki Prefecture, Japan, that operates alongside the adjacent Japan Air Self-Defense Force’s Hyakuri Air Base.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ibaraki Airport canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T4816229 — 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: Ibaraki Airport Context triple: [Hyakuri Air Base, sharedWith, Ibaraki Airport]
-
A.
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.
-
B.
Tokachi-Obihiro Airport
Tokachi-Obihiro Airport is a regional airport in Hokkaido, Japan, serving the city of Obihiro and the surrounding Tokachi area with domestic flights.
-
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.
Miyazaki Airport
Miyazaki Airport is a regional airport in Miyazaki Prefecture, Japan, serving domestic flights and limited international routes for the city and surrounding area.
-
E.
Chōfu Airport
Chōfu Airport is a regional airport in Tokyo, Japan, primarily serving domestic commuter and charter flights, including services to the Izu Islands.
- 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: Ibaraki Airport Target entity description: Ibaraki Airport is a regional civil airport in Ibaraki Prefecture, Japan, that operates alongside the adjacent Japan Air Self-Defense Force’s Hyakuri Air Base.
-
A.
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.
-
B.
Tokachi-Obihiro Airport
Tokachi-Obihiro Airport is a regional airport in Hokkaido, Japan, serving the city of Obihiro and the surrounding Tokachi area with domestic flights.
-
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.
Miyazaki Airport
Miyazaki Airport is a regional airport in Miyazaki Prefecture, Japan, serving domestic flights and limited international routes for the city and surrounding area.
-
E.
Chōfu Airport
Chōfu Airport is a regional airport in Tokyo, Japan, primarily serving domestic commuter and charter flights, including services to the Izu Islands.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
airport
ⓘ
civil airport ⓘ |
| adjacentTo | Hyakuri Air Base NERFINISHED ⓘ |
| alsoKnownAs | Ibaraki Airport / Hyakuri NERFINISHED ⓘ |
| cityServed |
Mito
NERFINISHED
ⓘ
Tokyo metropolitan area NERFINISHED ⓘ |
| classification | regional airport ⓘ |
| country | Japan ⓘ |
| distanceFromTokyoKilometers | about 80 ⓘ |
| elevationMeters | 35 ⓘ |
| focusesOn | low-cost carriers ⓘ |
| groundTransport |
bus services to Mito
ⓘ
bus services to Tokyo ⓘ |
| hasApron | civilian aircraft apron ⓘ |
| hasControlTower | air traffic control tower ⓘ |
| hasFacility |
arrival hall
ⓘ
domestic departure area ⓘ international departure area ⓘ observation deck ⓘ shops and restaurants ⓘ |
| hasParking | car parking facilities ⓘ |
| hasPassengerTerminal | Ibaraki Airport Passenger Terminal NERFINISHED ⓘ |
| hasWebsite | https://www.ibaraki-airport.net/ ⓘ |
| IATAcode | IBR NERFINISHED ⓘ |
| ICAOcode | RJAH NERFINISHED ⓘ |
| JapaneseName | 茨城空港 NERFINISHED ⓘ |
| locatedIn |
Ibaraki Prefecture
NERFINISHED
ⓘ
Omitama, Ibaraki Prefecture NERFINISHED ⓘ |
| locatedOn | site of former Hyakuri Air Base civil facilities ⓘ |
| near |
Kashima Industrial Zone
NERFINISHED
ⓘ
Mito Station NERFINISHED ⓘ Omitama City center NERFINISHED ⓘ |
| opened | 2010-03-11 ⓘ |
| operatesAlongside | Hyakuri Air Base NERFINISHED ⓘ |
| operator | Ibaraki Prefectural Government NERFINISHED ⓘ |
| purpose | relieve congestion at Tokyo area airports ⓘ |
| region | Kantō region ⓘ |
| runway | Runway 03/21 ⓘ |
| runwayCount | 1 ⓘ |
| runwayLengthMeters | 2700 ⓘ |
| runwaySurface | asphalt ⓘ |
| servesRegion | Northern Kantō NERFINISHED ⓘ |
| servesTypeOfTraffic |
domestic flights
ⓘ
international flights ⓘ |
| sharesAirfieldWith | Japan Air Self-Defense Force NERFINISHED ⓘ |
| timeZone | Japan Standard Time ⓘ |
| UTCoffset | +09:00 ⓘ |
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: Ibaraki Airport Description of subject: Ibaraki Airport is a regional civil airport in Ibaraki Prefecture, Japan, that operates alongside the adjacent Japan Air Self-Defense Force’s Hyakuri Air Base.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.