Tokachi River headwaters
E375217
The Tokachi River headwaters are the uppermost source region of the Tokachi River, located within Japan’s mountainous Daisetsuzan National Park on Hokkaido.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Tokachi River headwaters canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3619257 — 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: Tokachi River headwaters Context triple: [Daisetsuzan National Park, hasRiver, Tokachi River headwaters]
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A.
Ishikari River headwaters
The Ishikari River headwaters are the high-altitude source streams of Hokkaido’s longest river, located in the mountainous interior of Daisetsuzan National Park in northern Japan.
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B.
Hirose River
The Hirose River is a prominent river in Miyagi Prefecture, Japan, known for flowing through the city of Sendai and for its scenic banks and clear waters.
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C.
Yoshino River
The Yoshino River is one of Japan’s major rivers, renowned for its strong currents, hydroelectric dams, and scenic gorges as it flows across the island of Shikoku.
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D.
Echigawa River
Echigawa River is a river in Japan that flows through Shiga Prefecture, contributing to the region’s natural landscape and water system.
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E.
Shukugawa River
The Shukugawa River is a scenic river in Hyōgo Prefecture, Japan, famed for its cherry blossom-lined banks that attract many visitors during hanami season.
- 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: Tokachi River headwaters Target entity description: The Tokachi River headwaters are the uppermost source region of the Tokachi River, located within Japan’s mountainous Daisetsuzan National Park on Hokkaido.
-
A.
Ishikari River headwaters
The Ishikari River headwaters are the high-altitude source streams of Hokkaido’s longest river, located in the mountainous interior of Daisetsuzan National Park in northern Japan.
-
B.
Hirose River
The Hirose River is a prominent river in Miyagi Prefecture, Japan, known for flowing through the city of Sendai and for its scenic banks and clear waters.
-
C.
Yoshino River
The Yoshino River is one of Japan’s major rivers, renowned for its strong currents, hydroelectric dams, and scenic gorges as it flows across the island of Shikoku.
-
D.
Echigawa River
Echigawa River is a river in Japan that flows through Shiga Prefecture, contributing to the region’s natural landscape and water system.
-
E.
Shukugawa River
The Shukugawa River is a scenic river in Hyōgo Prefecture, Japan, famed for its cherry blossom-lined banks that attract many visitors during hanami season.
- F. None of above. chosen
Statements (30)
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: Tokachi River headwaters Description of subject: The Tokachi River headwaters are the uppermost source region of the Tokachi River, located within Japan’s mountainous Daisetsuzan National Park on Hokkaido.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.