Tokachi River
E501374
The Tokachi River is a major river in Hokkaido, Japan, known for flowing through the Tokachi Plain and supporting regional agriculture and settlements.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Tokachi River canonical | 1 |
| Tokachi River basin | 1 |
| Tokachi River system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4225960 — 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 Context triple: [Obihiro, locatedOnRiver, Tokachi River]
-
A.
Shinano River
The Shinano River is Japan’s longest river, flowing through central Honshu before emptying into the Sea of Japan.
-
B.
Tenryu River
The Tenryu River is a major river in central Japan that flows through Nagano and Shizuoka Prefectures before emptying into the Pacific Ocean, known for its strong currents and scenic gorges.
-
C.
Inagawa River
The Inagawa River is a river in Japan’s Kansai region that flows through Hyōgo Prefecture, including the city of Amagasaki, before emptying into Osaka Bay.
-
D.
Kamogawa River
The Kamogawa River is a prominent river flowing through Kyoto, Japan, known for its scenic banks lined with traditional teahouses, restaurants, and popular walking paths.
-
E.
Okano River
The Okano River is a significant river in Gabon that serves as one of the principal tributaries feeding the Ogooué River system.
- 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 Target entity description: The Tokachi River is a major river in Hokkaido, Japan, known for flowing through the Tokachi Plain and supporting regional agriculture and settlements.
-
A.
Shinano River
The Shinano River is Japan’s longest river, flowing through central Honshu before emptying into the Sea of Japan.
-
B.
Tenryu River
The Tenryu River is a major river in central Japan that flows through Nagano and Shizuoka Prefectures before emptying into the Pacific Ocean, known for its strong currents and scenic gorges.
-
C.
Inagawa River
The Inagawa River is a river in Japan’s Kansai region that flows through Hyōgo Prefecture, including the city of Amagasaki, before emptying into Osaka Bay.
-
D.
Kamogawa River
The Kamogawa River is a prominent river flowing through Kyoto, Japan, known for its scenic banks lined with traditional teahouses, restaurants, and popular walking paths.
-
E.
Okano River
The Okano River is a significant river in Gabon that serves as one of the principal tributaries feeding the Ogooué River system.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
geographical feature
ⓘ
river ⓘ |
| basinCountry | Japan NERFINISHED ⓘ |
| continent | Asia ⓘ |
| country | Japan ⓘ |
| drainageBasinLocatedIn | Hokkaido NERFINISHED ⓘ |
| flowsThrough | Tokachi Plain NERFINISHED ⓘ |
| hasEconomicRole |
supports local agriculture
ⓘ
supports local communities ⓘ |
| hasEnvironmentalRole |
provides freshwater habitat
ⓘ
supports regional ecosystems ⓘ |
| hasNameInLanguage | 十勝川 (Japanese) ⓘ |
| hasRegion | Tokachi region NERFINISHED ⓘ |
| locatedIn |
Hokkaido
NERFINISHED
ⓘ
Tokachi Subprefecture NERFINISHED ⓘ northern Japan NERFINISHED ⓘ |
| mouthLocatedIn |
Pacific Ocean
NERFINISHED
ⓘ
Pacific coast of Hokkaido ⓘ |
| partOf | river systems of Hokkaido ⓘ |
| supports |
regional agriculture
ⓘ
regional settlements ⓘ |
| usedFor |
agricultural water supply
ⓘ
fisheries ⓘ flood control projects ⓘ irrigation ⓘ |
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 Description of subject: The Tokachi River is a major river in Hokkaido, Japan, known for flowing through the Tokachi Plain and supporting regional agriculture and settlements.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Tokachi River system
this entity surface form:
Tokachi River basin