Yūbari River
E401734
The Yūbari River is a river in Hokkaido, Japan, known for flowing through the former coal-mining city of Yūbari and into the Ishikari River system.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Ishikari River | 1 |
| Yūbari River canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2935433 — 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: Yūbari River Context triple: [Japanese cruiser Yubari, namedAfter, Yūbari River]
-
A.
Yoshii River
The Yoshii River is a significant river in Japan that serves as one of the main tributaries feeding the larger Shinano River system.
-
B.
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.
-
C.
Osuga River
The Osuga River is a watercourse in Russia that flows through the Tver Oblast region, passing near the village of Pryamukhino.
-
D.
Akuta River
The Akuta River is a waterway located in Japan's Ibaraki Prefecture, contributing to the region's local drainage and landscape.
-
E.
Echigawa River
Echigawa River is a river in Japan that flows through Shiga Prefecture, contributing to the region’s natural landscape and water 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: Yūbari River Target entity description: The Yūbari River is a river in Hokkaido, Japan, known for flowing through the former coal-mining city of Yūbari and into the Ishikari River system.
-
A.
Yoshii River
The Yoshii River is a significant river in Japan that serves as one of the main tributaries feeding the larger Shinano River system.
-
B.
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.
-
C.
Osuga River
The Osuga River is a watercourse in Russia that flows through the Tver Oblast region, passing near the village of Pryamukhino.
-
D.
Akuta River
The Akuta River is a waterway located in Japan's Ibaraki Prefecture, contributing to the region's local drainage and landscape.
-
E.
Echigawa River
Echigawa River is a river in Japan that flows through Shiga Prefecture, contributing to the region’s natural landscape and water system.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| associatedWithCity | Yūbari, former coal-mining city ⓘ |
| associatedWithIndustry | coal mining ⓘ |
| basinCountry | Japan ⓘ |
| continent | Asia ⓘ |
| country | Japan ⓘ |
| countrySubdivision |
Hokkaido
ⓘ
surface form:
Hokkaido Prefecture
|
| drainageBasin | Ishikari River basin NERFINISHED ⓘ |
| flowsDirection | generally westward ⓘ |
| flowsIn | northern Japan ⓘ |
| flowsThrough |
Ishikari Subprefecture
ⓘ
Sorachi Subprefecture ⓘ Yūbari, Hokkaido ⓘ |
| hasEnvironmentalConcern |
flood risk
ⓘ
water quality impacted by past mining activities ⓘ |
| hasJapaneseName | 夕張川 ⓘ |
| hasLanguageCode | ja ⓘ |
| hasMouthNear | Iwamizawa, Hokkaido ⓘ |
| hasSourceRegion | central Hokkaido ⓘ |
| hasUse |
hydroelectric power generation
ⓘ
irrigation ⓘ water supply ⓘ |
| locatedIn |
Hokkaido
ⓘ
Japan ⓘ |
| locatedOnIsland | Hokkaido ⓘ |
| mouthOfWatercourse | Ishikari River NERFINISHED ⓘ |
| namedAfter | Yūbari NERFINISHED ⓘ |
| partOf |
Ishikari River basin
ⓘ
surface form:
Ishikari River system
|
| riverSystem |
Ishikari River basin
ⓘ
surface form:
Ishikari River system
|
| tributaryOf | Ishikari River NERFINISHED ⓘ |
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: Yūbari River Description of subject: The Yūbari River is a river in Hokkaido, Japan, known for flowing through the former coal-mining city of Yūbari and into the Ishikari River system.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Ishikari River