Ishikari River basin

E1205608 UNEXPLORED

The Ishikari River basin is the extensive watershed in central Hokkaido, Japan, that collects and drains the waters of the Ishikari River and its tributaries into the Sea of Japan.

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All labels observed (4)

Label	Occurrences
Ishikari River system	4
Ishikari River basin canonical	2
Ishikari River lower basin	1
Ishikari River valley	1

How this entity was disambiguated

This entity first appeared as the object of triple T14979416 — 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: Ishikari River basin
Context triple: [Ishikari River headwaters, partOf, Ishikari River basin]

A. Shimanto River basin
The Shimanto River basin is a scenic and relatively undeveloped river system in southwestern Shikoku, Japan, renowned for its clear waters, traditional rural landscapes, and cultural significance.
B. Tamakoshi River
The Tamakoshi River is a significant Himalayan river in Nepal known for its hydropower potential and contribution to the Koshi river system.
C. Iori River valley
The Iori River valley is a geographic region shaped by the Iori River, characterized by its fertile lowlands and its role as a natural boundary and corridor in eastern Georgia and neighboring areas.
D. Yonezawa Basin
Yonezawa Basin is an inland basin in Yamagata Prefecture, Japan, known for encompassing the city of Yonezawa and its surrounding agricultural and residential areas.
E. Kitakami River
The Kitakami River is a major river in Japan’s Tōhoku region, flowing through Iwate and Miyagi Prefectures and known historically for its role in regional transport, agriculture, and flood control.
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: Ishikari River basin
Target entity description: The Ishikari River basin is the extensive watershed in central Hokkaido, Japan, that collects and drains the waters of the Ishikari River and its tributaries into the Sea of Japan.

A. Shimanto River basin
The Shimanto River basin is a scenic and relatively undeveloped river system in southwestern Shikoku, Japan, renowned for its clear waters, traditional rural landscapes, and cultural significance.
B. Tamakoshi River
The Tamakoshi River is a significant Himalayan river in Nepal known for its hydropower potential and contribution to the Koshi river system.
C. Iori River valley
The Iori River valley is a geographic region shaped by the Iori River, characterized by its fertile lowlands and its role as a natural boundary and corridor in eastern Georgia and neighboring areas.
D. Yonezawa Basin
Yonezawa Basin is an inland basin in Yamagata Prefecture, Japan, known for encompassing the city of Yonezawa and its surrounding agricultural and residential areas.
E. Kitakami River
The Kitakami River is a major river in Japan’s Tōhoku region, flowing through Iwate and Miyagi Prefectures and known historically for its role in regional transport, agriculture, and flood control.
F. None of above. chosen