Oka River (Siberia)
E1029064
The Oka River in Siberia is a major tributary of the Angara River that flows northward from the Sayan Mountains through remote regions of southern Siberia.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Oka River (Angara) | 1 |
| Oka River (Siberia) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T12833037 — 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: Oka River (Siberia) Context triple: [Sayan Mountains, drainedBy, Oka River (Siberia)]
-
A.
Oka River
The Oka River is a short river in the Basque Country of northern Spain that flows through the Urdaibai Biosphere Reserve before reaching the Bay of Biscay.
-
B.
Oka River
The Oka River is a major river in central Russia that flows through cities like Oryol, Kaluga, and Nizhny Novgorod before joining the Volga.
-
C.
Kulik River
The Kulik River is a river in eastern India that flows through the town of Raiganj in West Bengal and is known for supporting the nearby Kulik (Raiganj) Bird Sanctuary.
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D.
Evo-Yakha River
Evo-Yakha River is a tributary watercourse in northern Russia that feeds into the larger Pur River system in the West Siberian Plain.
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E.
Cherepanikha River
The Cherepanikha River is a smaller watercourse in Russia that serves as a tributary within the Kirenga River basin in Siberia.
- 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: Oka River (Siberia) Target entity description: The Oka River in Siberia is a major tributary of the Angara River that flows northward from the Sayan Mountains through remote regions of southern Siberia.
-
A.
Oka River
The Oka River is a major river in central Russia that flows through cities like Oryol, Kaluga, and Nizhny Novgorod before joining the Volga.
-
B.
Oka River
The Oka River is a short river in the Basque Country of northern Spain that flows through the Urdaibai Biosphere Reserve before reaching the Bay of Biscay.
-
C.
Kulik River
The Kulik River is a river in eastern India that flows through the town of Raiganj in West Bengal and is known for supporting the nearby Kulik (Raiganj) Bird Sanctuary.
-
D.
Evo-Yakha River
Evo-Yakha River is a tributary watercourse in northern Russia that feeds into the larger Pur River system in the West Siberian Plain.
-
E.
Cherepanikha River
The Cherepanikha River is a smaller watercourse in Russia that serves as a tributary within the Kirenga River basin in Siberia.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
geographical feature
ⓘ
river ⓘ |
| continent | Asia ⓘ |
| country | Russia ⓘ |
| countrySubdivision | Siberian Federal District NERFINISHED ⓘ |
| drainageBasin | Yenisei River NERFINISHED ⓘ |
| environmentType |
mountain river in upper reaches
ⓘ
taiga region ⓘ |
| flowDirection | northward ⓘ |
| flowsFrom | Sayan Mountains NERFINISHED ⓘ |
| hasName | Oka River NERFINISHED ⓘ |
| locatedIn |
Irkutsk Oblast
NERFINISHED
ⓘ
Republic of Buryatia NERFINISHED ⓘ Siberia ⓘ southern Siberia ⓘ |
| locatedInMountainRange | Eastern Sayan Mountains NERFINISHED ⓘ |
| mouth | Angara River NERFINISHED ⓘ |
| notableFor |
being a major tributary of the Angara River
ⓘ
flowing through sparsely populated areas ⓘ |
| partOf | Angara River basin NERFINISHED ⓘ |
| passesThrough | remote regions of southern Siberia ⓘ |
| region | Eastern Siberia NERFINISHED ⓘ |
| riverSystem | Yenisei River basin NERFINISHED ⓘ |
| sourceRegion | Sayan Mountains NERFINISHED ⓘ |
| tributaryOf | Angara 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: Oka River (Siberia) Description of subject: The Oka River in Siberia is a major tributary of the Angara River that flows northward from the Sayan Mountains through remote regions of southern Siberia.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Oka River (Angara)