Ota River
E241027
The Ota River is a major river in Japan’s Hiroshima Prefecture, known for flowing through the city of Hiroshima and forming the delta on which the city is built.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Ota River canonical | 2 |
| Ota River system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1496945 — 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: Ota River Context triple: [Hiroshima, locatedOnRiver, Ota River]
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A.
Otaio River
The Otaio River is a small river in the South Island of New Zealand that flows through rural Canterbury farmland before reaching the Pacific Ocean.
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B.
Itaya River
The Itaya River is a tributary of the Amazon River in northeastern Peru that flows past the city of Iquitos and plays a key role in the region’s transportation and ecology.
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C.
Aruwimi River
The Aruwimi River is a significant river in the Democratic Republic of the Congo, known for flowing through dense equatorial rainforest and contributing substantially to the Congo River basin.
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D.
Samur River
The Samur River is a transboundary river in the eastern Caucasus that flows through Dagestan in Russia and northeastern Azerbaijan before emptying into the Caspian Sea.
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E.
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.
- 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: Ota River Target entity description: The Ota River is a major river in Japan’s Hiroshima Prefecture, known for flowing through the city of Hiroshima and forming the delta on which the city is built.
-
A.
Otaio River
The Otaio River is a small river in the South Island of New Zealand that flows through rural Canterbury farmland before reaching the Pacific Ocean.
-
B.
Itaya River
The Itaya River is a tributary of the Amazon River in northeastern Peru that flows past the city of Iquitos and plays a key role in the region’s transportation and ecology.
-
C.
Aruwimi River
The Aruwimi River is a significant river in the Democratic Republic of the Congo, known for flowing through dense equatorial rainforest and contributing substantially to the Congo River basin.
-
D.
Samur River
The Samur River is a transboundary river in the eastern Caucasus that flows through Dagestan in Russia and northeastern Azerbaijan before emptying into the Caspian Sea.
-
E.
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.
- F. None of above. chosen
Statements (36)
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: Ota River Description of subject: The Ota River is a major river in Japan’s Hiroshima Prefecture, known for flowing through the city of Hiroshima and forming the delta on which the city is built.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Ota River