Sasebo Port
E721889
Sasebo Port is a major Japanese harbor in Nagasaki Prefecture known for its commercial shipping, shipbuilding facilities, and role as a base for both the Japan Maritime Self-Defense Force and the U.S. Navy.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Port of Sasebo | 3 |
| Sasebo Naval Base | 3 |
| Sasebo Port canonical | 2 |
| Sasebo naval port | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8113977 — 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: Sasebo Port Context triple: [Sasebo, hasPort, Sasebo Port]
-
A.
Yokosuka Port
Yokosuka Port is a major Japanese maritime hub in Kanagawa Prefecture known for its commercial shipping facilities and significant naval bases, including those of the Japan Maritime Self-Defense Force and the U.S. Navy.
-
B.
Onagawa Port
Onagawa Port is a coastal harbor town in northeastern Japan known for its fishing industry, scenic bay, and reconstruction efforts following the 2011 Tōhoku earthquake and tsunami.
-
C.
Miyazu Port
Miyazu Port is a coastal harbor facility in Miyazu, Kyoto Prefecture, Japan, serving regional maritime transport, fishing, and access to the scenic Amanohashidate area.
-
D.
Hanko naval base
Hanko naval base was a strategically important Soviet-leased military installation on Finland’s Hanko Peninsula during and shortly after the Winter War and World War II.
-
E.
Hiroshima Port
Hiroshima Port is a major Japanese seaport in Hiroshima City that serves as a key hub for passenger ferries and cargo traffic within the Seto Inland Sea.
- 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: Sasebo Port Target entity description: Sasebo Port is a major Japanese harbor in Nagasaki Prefecture known for its commercial shipping, shipbuilding facilities, and role as a base for both the Japan Maritime Self-Defense Force and the U.S. Navy.
-
A.
Yokosuka Port
Yokosuka Port is a major Japanese maritime hub in Kanagawa Prefecture known for its commercial shipping facilities and significant naval bases, including those of the Japan Maritime Self-Defense Force and the U.S. Navy.
-
B.
Onagawa Port
Onagawa Port is a coastal harbor town in northeastern Japan known for its fishing industry, scenic bay, and reconstruction efforts following the 2011 Tōhoku earthquake and tsunami.
-
C.
Miyazu Port
Miyazu Port is a coastal harbor facility in Miyazu, Kyoto Prefecture, Japan, serving regional maritime transport, fishing, and access to the scenic Amanohashidate area.
-
D.
Hanko naval base
Hanko naval base was a strategically important Soviet-leased military installation on Finland’s Hanko Peninsula during and shortly after the Winter War and World War II.
-
E.
Hiroshima Port
Hiroshima Port is a major Japanese seaport in Hiroshima City that serves as a key hub for passenger ferries and cargo traffic within the Seto Inland Sea.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
harbor
ⓘ
seaport ⓘ |
| alternateName |
Port of Sasebo
ⓘ
linked to:
Sasebo Port
|
| country | Japan ⓘ |
| hasEconomicRole |
regional industrial center
ⓘ
supporting local commerce ⓘ supporting shipbuilding industry ⓘ |
| hasInfrastructure |
ammunition storage facilities
ⓘ
container terminals ⓘ dry docks ⓘ fuel depots ⓘ logistics warehouses ⓘ piers ⓘ |
| hasPart |
Japan Maritime Self-Defense Force Sasebo District Headquarters
ⓘ
linked to:
Sasebo Naval District
Sasebo Naval Base ⓘ
linked to:
Sasebo Port
United States Fleet Activities Sasebo ⓘ |
| hasTransportConnection | Sasebo railway and road network ⓘ |
| hasUse |
commercial shipping
ⓘ
logistics hub ⓘ naval base ⓘ shipbuilding ⓘ |
| languageUsed | Japanese ⓘ |
| locatedIn |
Sasebo, Nagasaki Prefecture
ⓘ
linked to:
Sasebo city
|
| locatedInAdministrativeTerritory | Nagasaki Prefecture ⓘ |
| locatedInTimeZone | Japan Standard Time ⓘ |
| locatedNear | Kyushu ⓘ |
| locatedOnBodyOfWater |
East China Sea
ⓘ
Sasebo Bay ⓘ |
| militaryBranchPresent |
Japan Maritime Self-Defense Force
ⓘ
United States Navy Seventh Fleet units ⓘ
linked to:
Seventh Fleet
|
| nearbyCity |
Sasebo
ⓘ
linked to:
Sasebo, Japan
|
| nearbyFacility | United States Fleet Activities Sasebo ⓘ |
| operator | local port authority of Sasebo ⓘ |
| partOf |
Port of Nagasaki system
ⓘ
linked to:
Port of Nagasaki
|
| region | Kyushu ⓘ |
| securityRole |
maritime defense of western Japan
ⓘ
support for U.S. forward-deployed naval forces ⓘ |
| significantFor |
military operations support
ⓘ
regional maritime trade ⓘ ship repair ⓘ |
| strategicLocationFor |
U.S.-Japan security alliance operations
ⓘ
maritime routes in the East China Sea ⓘ |
| supportsActivity |
cargo handling
ⓘ
fishing industry ⓘ fleet maintenance ⓘ naval training ⓘ |
| usedBy |
Japan Maritime Self-Defense Force
ⓘ
United States Navy ⓘ |
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: Sasebo Port Description of subject: Sasebo Port is a major Japanese harbor in Nagasaki Prefecture known for its commercial shipping, shipbuilding facilities, and role as a base for both the Japan Maritime Self-Defense Force and the U.S. Navy.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Sasebo, Japan
linked to: Sasebo Port
linked to: Sasebo Port
linked to: Sasebo Port
linked to: Sasebo Port
linked to: Sasebo Port
linked to: Sasebo Port