Omono River (Yamagata)
E1027180
The Omono River (Yamagata) is a river in Japan’s Tohoku region that forms part of the Mogami River system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Omono River (Yamagata) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13206889 — 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: Omono River (Yamagata) Context triple: [Mogami River, tributary, Omono River (Yamagata)]
-
A.
Naruse River
The Naruse River is a significant river in Japan’s Tōhoku region, flowing through Miyagi Prefecture and supporting local agriculture and communities along its course.
-
B.
Shigenobu River
Shigenobu River is a major river in Ehime Prefecture on Japan’s Shikoku Island, flowing through the city of Matsuyama and playing an important role in its landscape and water supply.
-
C.
Yumesaki River
The Yumesaki River is a waterway in Hyōgo Prefecture, Japan, that flows through the city of Himeji and contributes to its local landscape and ecosystem.
-
D.
Motoyasu River
The Motoyasu River is a river flowing through central Hiroshima, Japan, known for running beside the Atomic Bomb Dome and Hiroshima Peace Memorial Park.
-
E.
Takase River
The Takase River is a mountain river in Japan known for its clear waters, steep valleys, and role in regional hydroelectric power generation.
- 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: Omono River (Yamagata) Target entity description: The Omono River (Yamagata) is a river in Japan’s Tohoku region that forms part of the Mogami River system.
-
A.
Naruse River
The Naruse River is a significant river in Japan’s Tōhoku region, flowing through Miyagi Prefecture and supporting local agriculture and communities along its course.
-
B.
Shigenobu River
Shigenobu River is a major river in Ehime Prefecture on Japan’s Shikoku Island, flowing through the city of Matsuyama and playing an important role in its landscape and water supply.
-
C.
Yumesaki River
The Yumesaki River is a waterway in Hyōgo Prefecture, Japan, that flows through the city of Himeji and contributes to its local landscape and ecosystem.
-
D.
Motoyasu River
The Motoyasu River is a river flowing through central Hiroshima, Japan, known for running beside the Atomic Bomb Dome and Hiroshima Peace Memorial Park.
-
E.
Takase River
The Takase River is a mountain river in Japan known for its clear waters, steep valleys, and role in regional hydroelectric power generation.
- F. None of above. chosen
Statements (10)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| continent | Asia ⓘ |
| country | Japan ⓘ |
| hasMouthIn | Yamagata Prefecture NERFINISHED ⓘ |
| locatedIn |
Tohoku region
ⓘ
linked to:
Tohoku
|
| locatedInCountrySubdivision | Yamagata Prefecture NERFINISHED ⓘ |
| locatedInPrefecture | Yamagata Prefecture NERFINISHED ⓘ |
| locatedOnIsland | Honshu ⓘ |
| partOfRiverSystem |
Mogami River system
ⓘ
linked to:
Mogami River
|
| tributaryOf | Mogami River ⓘ |
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: Omono River (Yamagata) Description of subject: The Omono River (Yamagata) is a river in Japan’s Tohoku region that forms part of the Mogami River system.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.