Omitama
E472461
Omitama is a city in Ibaraki Prefecture, Japan, known for hosting Hyakuri Air Base and serving as a regional transportation and agricultural hub.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Omitama canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T4816221 — 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: Omitama Context triple: [Hyakuri Air Base, nearestCity, Omitama]
-
A.
Okutama
Okutama is a mountainous town in western Tokyo, Japan, known for its forests, lakes, and outdoor recreation areas at the headwaters of the Tama River.
-
B.
Ōkagami
Ōkagami is a Japanese historical tale (rekishi monogatari) that offers a semi-fictionalized chronicle of court politics and aristocratic life surrounding the Fujiwara clan during the Heian period.
-
C.
Kamitsumaki
Kamitsumaki is the first volume of the ancient Japanese chronicle Kojiki, focusing on Shinto creation myths and the age of the gods.
-
D.
Oreshura
Oreshura is a Japanese romantic comedy light novel and anime series that follows a high school boy roped into a fake relationship with a popular girl to fend off unwanted romantic attention.
-
E.
Umi Jigoku
Umi Jigoku is one of Beppu’s famous “hell” hot springs in Japan, known for its striking cobalt-blue boiling water and scenic, geothermal landscape.
- 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: Omitama Target entity description: Omitama is a city in Ibaraki Prefecture, Japan, known for hosting Hyakuri Air Base and serving as a regional transportation and agricultural hub.
-
A.
Okutama
Okutama is a mountainous town in western Tokyo, Japan, known for its forests, lakes, and outdoor recreation areas at the headwaters of the Tama River.
-
B.
Ōkagami
Ōkagami is a Japanese historical tale (rekishi monogatari) that offers a semi-fictionalized chronicle of court politics and aristocratic life surrounding the Fujiwara clan during the Heian period.
-
C.
Kamitsumaki
Kamitsumaki is the first volume of the ancient Japanese chronicle Kojiki, focusing on Shinto creation myths and the age of the gods.
-
D.
Oreshura
Oreshura is a Japanese romantic comedy light novel and anime series that follows a high school boy roped into a fake relationship with a popular girl to fend off unwanted romantic attention.
-
E.
Umi Jigoku
Umi Jigoku is one of Beppu’s famous “hell” hot springs in Japan, known for its striking cobalt-blue boiling water and scenic, geothermal landscape.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
city
ⓘ
municipality ⓘ |
| administrativeDivisionOf | Ibaraki Prefecture ⓘ |
| borderedBy |
Hokota
ⓘ
Ishioka ⓘ Kasama ⓘ Kasumigaura ⓘ Namegata ⓘ |
| country | Japan ⓘ |
| formedByMergerOf |
Minori
ⓘ
Ogawa ⓘ Tamari ⓘ |
| governmentType | mayor–council form ⓘ |
| hasBodyOfWater | Lake Kasumigaura vicinity ⓘ |
| hasClimate | humid subtropical climate ⓘ |
| hasEconomicActivity |
agriculture
ⓘ
aviation-related services ⓘ food processing ⓘ |
| hasFacility |
Hyakuri Air Base
ⓘ
Ibaraki Airport ⓘ |
| hasLocalGovernment | Omitama City Hall ⓘ |
| hasMilitaryInstallation |
Japan Air Self-Defense Force base
ⓘ
linked to:
Hyakuri Air Base
|
| hasNameInJapanese | 小美玉市 ⓘ |
| hasNearbyCity |
Hokota City
ⓘ
Ishioka City ⓘ Kasumigaura City ⓘ |
| hasRoad |
Kita-Kantō Expressway vicinity
ⓘ
National Route 355 vicinity ⓘ National Route 6 vicinity ⓘ |
| hasTransportation |
Ibaraki Airport domestic flights
ⓘ
Ibaraki Airport international flights ⓘ JR Joban Line nearby ⓘ |
| isKnownFor |
Hyakuri Air Base
ⓘ
agricultural production ⓘ egg production ⓘ lotus root cultivation ⓘ pig farming ⓘ regional transportation hub ⓘ rice cultivation ⓘ |
| locatedIn |
Ibaraki Prefecture
ⓘ
Kantō region ⓘ |
| locatedNear |
Mito
ⓘ
Tsukuba ⓘ |
| locatedOn | Honshu ⓘ |
| partOf | Japan national capital region economic sphere ⓘ |
| 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: Omitama Description of subject: Omitama is a city in Ibaraki Prefecture, Japan, known for hosting Hyakuri Air Base and serving as a regional transportation and agricultural hub.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.