Ominato Base
E497760
Ominato Base is a major Japan Maritime Self-Defense Force naval installation located in northern Honshu, serving as a strategic hub for maritime defense and patrol operations.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ominato Base canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T5158160 — 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: Ominato Base Context triple: [Ominato District, associatedWith, Ominato Base]
-
A.
Sumoto
Sumoto is a coastal city located on Awaji Island in Japan, known for its hot springs, scenic views of the Seto Inland Sea, and citrus production.
-
B.
Maizuru Naval Base
Maizuru Naval Base is a major Japan Maritime Self-Defense Force installation on the Sea of Japan coast, historically one of the Imperial Japanese Navy’s principal naval districts.
-
C.
Shimpotō
Shimpotō was a late 19th-century Japanese political party that emerged from liberal reformist movements during the Meiji period.
-
D.
Kasumigaseki
Kasumigaseki is a central district in Tokyo known as Japan’s main government and bureaucratic hub, housing numerous national ministries and agencies.
-
E.
Etajima
Etajima is a city in Hiroshima Prefecture, Japan, historically known as the site of the Imperial Japanese Naval Academy.
- 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: Ominato Base Target entity description: Ominato Base is a major Japan Maritime Self-Defense Force naval installation located in northern Honshu, serving as a strategic hub for maritime defense and patrol operations.
-
A.
Sumoto
Sumoto is a coastal city located on Awaji Island in Japan, known for its hot springs, scenic views of the Seto Inland Sea, and citrus production.
-
B.
Maizuru Naval Base
Maizuru Naval Base is a major Japan Maritime Self-Defense Force installation on the Sea of Japan coast, historically one of the Imperial Japanese Navy’s principal naval districts.
-
C.
Shimpotō
Shimpotō was a late 19th-century Japanese political party that emerged from liberal reformist movements during the Meiji period.
-
D.
Kasumigaseki
Kasumigaseki is a central district in Tokyo known as Japan’s main government and bureaucratic hub, housing numerous national ministries and agencies.
-
E.
Etajima
Etajima is a city in Hiroshima Prefecture, Japan, historically known as the site of the Imperial Japanese Naval Academy.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
Japan Maritime Self-Defense Force base
ⓘ
naval base ⓘ |
| branch | Japan Maritime Self-Defense Force ⓘ |
| controlledBy | Japan Maritime Self-Defense Force ⓘ |
| country | Japan ⓘ |
| era | post-World War II ⓘ |
| garrison |
Japan Maritime Self-Defense Force units
ⓘ
linked to:
Japan Maritime Self-Defense Force
Ominato District Force ⓘ
linked to:
Ominato Guard District
|
| geopoliticalContext | Japanese home islands defense infrastructure ⓘ |
| hasFacility |
administrative buildings
ⓘ
logistics support facilities ⓘ maintenance facilities ⓘ piers for JMSDF vessels ⓘ training facilities ⓘ |
| hasMission |
monitoring of surrounding sea areas
ⓘ
protection of Japan’s northern maritime approaches ⓘ |
| historicalUse | Imperial Japanese Navy base ⓘ |
| locatedIn |
Aomori Prefecture
ⓘ
Honshu ⓘ Mutsu, Aomori Prefecture ⓘ
linked to:
Mutsu, Aomori Prefecture, Japan
Tohoku region ⓘ
linked to:
Tohoku
northern Japan ⓘ |
| locatedOn |
Mutsu Bay
ⓘ
Pacific Ocean ⓘ |
| militaryBranchType | naval forces ⓘ |
| operator | Japan Maritime Self-Defense Force ⓘ |
| overseesArea |
Tsugaru Strait
ⓘ
northern Pacific approaches to Japan ⓘ waters around northern Honshu ⓘ |
| partOf | Japan Maritime Self-Defense Force ⓘ |
| serviceBranch | Japan Self-Defense Forces ⓘ |
| significance | one of the principal JMSDF bases in northern Japan ⓘ |
| status | active ⓘ |
| strategicRole |
forward base for operations in the Pacific approaches to northern Japan
ⓘ
forward base for operations in the Tsugaru Strait ⓘ strategic hub for northern Japan maritime defense ⓘ |
| supportsUnitType |
auxiliary ships
ⓘ
destroyers ⓘ patrol vessels ⓘ |
| timezone | Japan Standard Time ⓘ |
| usedFor |
anti-submarine warfare operations
ⓘ
fleet support ⓘ maritime defense ⓘ maritime patrol operations ⓘ sea lane protection ⓘ search and rescue operations ⓘ |
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: Ominato Base Description of subject: Ominato Base is a major Japan Maritime Self-Defense Force naval installation located in northern Honshu, serving as a strategic hub for maritime defense and patrol operations.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.