U.S. Navy base
E389478
The U.S. Navy base in Yokosuka, Kanagawa, Japan is a major overseas naval installation that serves as the home port for the U.S. Seventh Fleet and a key hub for American maritime operations in the Western Pacific.
All labels observed (2)
| Label | Occurrences |
|---|---|
| U.S. Navy base canonical | 1 |
| U.S. Navy installations in Japan | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3793144 — 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: U.S. Navy base Context triple: [Yokosuka, Kanagawa, Japan, hosts, U.S. Navy base]
-
A.
United States Navy shore establishment
The United States Navy shore establishment is the network of land-based facilities and commands that support, train, supply, and maintain naval forces and operations worldwide.
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B.
Portsmouth Naval Base
Portsmouth Naval Base is a major Royal Navy dockyard and headquarters on England’s south coast, serving as one of the UK’s principal naval facilities.
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C.
Naval Base San Diego
Naval Base San Diego is a major United States Navy installation and homeport on the Pacific coast, serving as one of the Navy’s largest surface ship bases.
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D.
Naval Station Norfolk
Naval Station Norfolk is the world’s largest naval base and a major hub for the U.S. Navy’s Atlantic Fleet, located in Norfolk, Virginia.
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E.
Naval Support Facility Arlington
Naval Support Facility Arlington is a U.S. military installation in Arlington, Virginia that supports Navy and joint-service operations, administration, and training.
- 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: U.S. Navy base Target entity description: The U.S. Navy base in Yokosuka, Kanagawa, Japan is a major overseas naval installation that serves as the home port for the U.S. Seventh Fleet and a key hub for American maritime operations in the Western Pacific.
-
A.
United States Navy shore establishment
The United States Navy shore establishment is the network of land-based facilities and commands that support, train, supply, and maintain naval forces and operations worldwide.
-
B.
Portsmouth Naval Base
Portsmouth Naval Base is a major Royal Navy dockyard and headquarters on England’s south coast, serving as one of the UK’s principal naval facilities.
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C.
Naval Base San Diego
Naval Base San Diego is a major United States Navy installation and homeport on the Pacific coast, serving as one of the Navy’s largest surface ship bases.
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D.
Naval Station Norfolk
Naval Station Norfolk is the world’s largest naval base and a major hub for the U.S. Navy’s Atlantic Fleet, located in Norfolk, Virginia.
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E.
Naval Support Facility Arlington
Naval Support Facility Arlington is a U.S. military installation in Arlington, Virginia that supports Navy and joint-service operations, administration, and training.
- F. None of above. chosen
Statements (36)
| Predicate | Object |
|---|---|
| instanceOf |
United States Navy base
ⓘ
military installation ⓘ naval base ⓘ |
| allianceRole | supports U.S.–Japan security alliance ⓘ |
| alliedCountryHost | Japan ⓘ |
| country | United States of America ⓘ |
| distanceFrom | south of Tokyo ⓘ |
| garrison |
U.S. Seventh Fleet headquarters
ⓘ
linked to:
Seventh Fleet
various U.S. Navy surface combatants ⓘ |
| hasFacilityType |
headquarters and command buildings
ⓘ
housing and support services for U.S. personnel ⓘ logistics and supply depots ⓘ piers and berthing facilities ⓘ ship repair and maintenance facilities ⓘ |
| homePortOf |
United States Seventh Fleet
ⓘ
linked to:
Seventh Fleet
|
| locatedIn |
Japan
ⓘ
Kanagawa Prefecture ⓘ |
| location |
Yokosuka, Kanagawa Prefecture, Japan
ⓘ
linked to:
Yokosuka, Kanagawa, Japan
|
| operator | United States Navy ⓘ |
| partOf | U.S. Pacific Fleet support infrastructure ⓘ |
| regionServed |
Indo-Pacific region
ⓘ
Western Pacific Ocean ⓘ
linked to:
western Pacific Ocean
|
| sharesAreaWith | Japan Maritime Self-Defense Force base at Yokosuka ⓘ |
| strategicImportance |
major overseas U.S. naval installation
ⓘ
primary home port for forward-deployed U.S. carrier strike group assets in Japan ⓘ |
| strategicRole |
forward-deployed base for U.S. naval forces in East Asia
ⓘ
key hub for U.S. maritime operations in the Western Pacific ⓘ |
| supportsMissionType |
deterrence
ⓘ
freedom of navigation operations ⓘ humanitarian assistance and disaster relief ⓘ maritime security ⓘ |
| timeZone | Japan Standard Time ⓘ |
| usedFor |
berthing of forward-deployed warships
ⓘ
command and control of naval operations ⓘ logistics support ⓘ maintenance of U.S. Navy vessels ⓘ |
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: U.S. Navy base Description of subject: The U.S. Navy base in Yokosuka, Kanagawa, Japan is a major overseas naval installation that serves as the home port for the U.S. Seventh Fleet and a key hub for American maritime operations in the Western Pacific.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: U.S. Navy base