Yahagi River
E426717
The Yahagi River is a major river in central Japan that flows through Aichi and Gifu Prefectures and is known for its role in regional water supply, hydroelectric power, and scenic valleys.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Yahagi River canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3047626 — 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: Yahagi River Context triple: [Toyota City, hasRiver, Yahagi River]
-
A.
Yasu River
The Yasu River is a significant river in Japan’s Kansai region that flows through Shiga Prefecture and ultimately drains into Lake Biwa.
-
B.
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.
-
C.
Iori River
The Iori River is a river in the South Caucasus that flows through eastern Georgia and parts of Azerbaijan before joining the Kura (Mtkvari) River.
-
D.
Osuga River
The Osuga River is a watercourse in Russia that flows through the Tver Oblast region, passing near the village of Pryamukhino.
-
E.
Akuta River
The Akuta River is a waterway located in Japan's Ibaraki Prefecture, contributing to the region's local drainage and landscape.
- 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: Yahagi River Target entity description: The Yahagi River is a major river in central Japan that flows through Aichi and Gifu Prefectures and is known for its role in regional water supply, hydroelectric power, and scenic valleys.
-
A.
Yasu River
The Yasu River is a significant river in Japan’s Kansai region that flows through Shiga Prefecture and ultimately drains into Lake Biwa.
-
B.
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.
-
C.
Iori River
The Iori River is a river in the South Caucasus that flows through eastern Georgia and parts of Azerbaijan before joining the Kura (Mtkvari) River.
-
D.
Osuga River
The Osuga River is a watercourse in Russia that flows through the Tver Oblast region, passing near the village of Pryamukhino.
-
E.
Akuta River
The Akuta River is a waterway located in Japan's Ibaraki Prefecture, contributing to the region's local drainage and landscape.
- F. None of above. chosen
Statements (38)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| basinCountry | Japan NERFINISHED ⓘ |
| country | Japan ⓘ |
| drainageBasin | Yahagi River basin NERFINISHED ⓘ |
| ecosystemService |
aquatic habitat
ⓘ
riparian habitat ⓘ |
| flowsInto | Mikawa Bay NERFINISHED ⓘ |
| hasInfrastructure |
dams
ⓘ
hydropower plants ⓘ weirs ⓘ |
| hasPart |
Yahagi Dam
NERFINISHED
ⓘ
reservoirs ⓘ scenic valleys ⓘ |
| hasValley | Yahagi Valley NERFINISHED ⓘ |
| knownFor |
hydroelectric facilities
ⓘ
regional water resources ⓘ scenic landscapes ⓘ |
| languageOfName | Japanese ⓘ |
| locatedIn |
Aichi Prefecture
NERFINISHED
ⓘ
Chūbu region NERFINISHED ⓘ Gifu Prefecture NERFINISHED ⓘ |
| locatedOn | Honshū NERFINISHED ⓘ |
| mouthLocation | Mikawa Bay NERFINISHED ⓘ |
| passesThrough |
Okazaki, Aichi
NERFINISHED
ⓘ
Toyota, Aichi NERFINISHED ⓘ central Honshū ⓘ |
| region | central Japan ⓘ |
| supports |
agricultural activities
ⓘ
industrial water use ⓘ municipal water supply ⓘ |
| tourism |
outdoor recreation
ⓘ
sightseeing ⓘ |
| usedFor |
flood control
ⓘ
hydroelectric power generation ⓘ irrigation ⓘ recreation ⓘ water supply ⓘ |
| waterSystem | Pacific Ocean basin ⓘ |
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: Yahagi River Description of subject: The Yahagi River is a major river in central Japan that flows through Aichi and Gifu Prefectures and is known for its role in regional water supply, hydroelectric power, and scenic valleys.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Toyota City