Port of Otaru
E310020
The Port of Otaru is a major commercial and passenger seaport on Hokkaido’s Sea of Japan coast, historically serving as a key maritime gateway for trade and transport in northern Japan.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Port of Otaru canonical | 4 |
| Otaru City Port and Harbor Department | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2916613 — 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: Port of Otaru Context triple: [Otaru, hasPort, Port of Otaru]
-
A.
Port of Niigata
The Port of Niigata is a major seaport on the Sea of Japan in north-central Honshu, serving as an important hub for international trade, ferry services, and regional industry in Japan.
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B.
Port of Akita
The Port of Akita is a key seaport on Japan’s Sea of Japan coast that supports regional industry, trade, and maritime transport for Akita Prefecture.
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C.
Port of Naha
The Port of Naha is a major seaport and transportation hub in Okinawa, Japan, serving as a key gateway for passenger ferries, cargo shipping, and regional trade in the Ryukyu Islands.
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D.
Port of Amagasaki
The Port of Amagasaki is a major industrial and commercial seaport in Hyōgo Prefecture, Japan, serving the Kansai region with cargo handling and maritime logistics facilities.
-
E.
Izumiotsu Port
Izumiotsu Port is a commercial seaport in Izumiotsu, Osaka Prefecture, Japan, serving as a regional hub for maritime trade and logistics along Osaka Bay.
- 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: Port of Otaru Target entity description: The Port of Otaru is a major commercial and passenger seaport on Hokkaido’s Sea of Japan coast, historically serving as a key maritime gateway for trade and transport in northern Japan.
-
A.
Port of Niigata
The Port of Niigata is a major seaport on the Sea of Japan in north-central Honshu, serving as an important hub for international trade, ferry services, and regional industry in Japan.
-
B.
Port of Akita
The Port of Akita is a key seaport on Japan’s Sea of Japan coast that supports regional industry, trade, and maritime transport for Akita Prefecture.
-
C.
Port of Naha
The Port of Naha is a major seaport and transportation hub in Okinawa, Japan, serving as a key gateway for passenger ferries, cargo shipping, and regional trade in the Ryukyu Islands.
-
D.
Port of Amagasaki
The Port of Amagasaki is a major industrial and commercial seaport in Hyōgo Prefecture, Japan, serving the Kansai region with cargo handling and maritime logistics facilities.
-
E.
Izumiotsu Port
Izumiotsu Port is a commercial seaport in Izumiotsu, Osaka Prefecture, Japan, serving as a regional hub for maritime trade and logistics along Osaka Bay.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
port
ⓘ
seaport ⓘ transport infrastructure ⓘ |
| coast | Sea of Japan coast of Hokkaido ⓘ |
| continent | Asia ⓘ |
| country | Japan ⓘ |
| geographicLocation | western Hokkaido ⓘ |
| hasClimateInfluenceFrom | Sea of Japan ⓘ |
| hasPortType |
commercial seaport
ⓘ
passenger seaport ⓘ |
| historicalRole |
gateway for trade on the Sea of Japan
ⓘ
key maritime gateway for northern Japan ⓘ |
| isAccessibleBy |
rail
ⓘ
road ⓘ sea ⓘ |
| locatedIn |
Hokkaido
ⓘ
Otaru ⓘ |
| locatedInTimeZone | Japan Standard Time ⓘ |
| locatedOn | Sea of Japan ⓘ |
| majorFunction |
commercial port
ⓘ
passenger port ⓘ |
| partOf | maritime transport network of Japan ⓘ |
| regionServed | northern Japan ⓘ |
| servesCity | Otaru ⓘ |
| servesRegion | Hokkaido ⓘ |
| usedFor |
cargo transport
ⓘ
maritime trade ⓘ passenger transport ⓘ |
| waterway | Sea of Japan ⓘ |
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: Port of Otaru Description of subject: The Port of Otaru is a major commercial and passenger seaport on Hokkaido’s Sea of Japan coast, historically serving as a key maritime gateway for trade and transport in northern Japan.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Otaru City Port and Harbor Department