Onon River
E430163
The Onon River is a major river in northeastern Asia that originates in Mongolia, flows through Russia’s Zabaykalsky Krai, and is considered one of the headwaters of the Amur River system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Onon River canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T3191670 — 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: Onon River Context triple: [Zabaykalsky Krai, hasMajorRiver, Onon River]
-
A.
Olenyok River
The Olenyok River is a major river in northern Siberia, Russia, flowing through remote Arctic regions before emptying into the Laptev Sea.
-
B.
Seim River
The Seim River is a major tributary of the Desna River in Eastern Europe, flowing through parts of Russia and northern Ukraine.
-
C.
Ros River
The Ros River is a significant waterway in central Ukraine that flows through the Kyiv and Cherkasy regions before joining the Dnieper River.
-
D.
Tanana River
The Tanana River is a major tributary of the Yukon River in central Alaska, known for flowing past the city of Fairbanks and playing a key role in the region’s ecology and transportation.
-
E.
Sagavanirktok River
The Sagavanirktok River is a major river on Alaska’s North Slope that flows north through the Arctic coastal plain to the Beaufort Sea.
- 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: Onon River Target entity description: The Onon River is a major river in northeastern Asia that originates in Mongolia, flows through Russia’s Zabaykalsky Krai, and is considered one of the headwaters of the Amur River system.
-
A.
Olenyok River
The Olenyok River is a major river in northern Siberia, Russia, flowing through remote Arctic regions before emptying into the Laptev Sea.
-
B.
Seim River
The Seim River is a major tributary of the Desna River in Eastern Europe, flowing through parts of Russia and northern Ukraine.
-
C.
Ros River
The Ros River is a significant waterway in central Ukraine that flows through the Kyiv and Cherkasy regions before joining the Dnieper River.
-
D.
Tanana River
The Tanana River is a major tributary of the Yukon River in central Alaska, known for flowing past the city of Fairbanks and playing a key role in the region’s ecology and transportation.
-
E.
Sagavanirktok River
The Sagavanirktok River is a major river on Alaska’s North Slope that flows north through the Arctic coastal plain to the Beaufort Sea.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
river
ⓘ
transboundary river ⓘ |
| basinSize | 94010 square kilometers ⓘ |
| belongsTo | Pacific Ocean drainage basin NERFINISHED ⓘ |
| confluenceForms | Shilka River NERFINISHED ⓘ |
| continent | Asia ⓘ |
| countryOfMouth | Russia NERFINISHED ⓘ |
| countryOfSource | Mongolia NERFINISHED ⓘ |
| crossesBorderBetween |
Mongolia
NERFINISHED
ⓘ
Russia NERFINISHED ⓘ |
| drainageBasinCountry |
Mongolia
NERFINISHED
ⓘ
Russia NERFINISHED ⓘ |
| flowsDirection | generally northeast ⓘ |
| flowsThrough |
Dornod Province
NERFINISHED
ⓘ
Khentii Province NERFINISHED ⓘ Zabaykalsky Krai NERFINISHED ⓘ |
| formsConfluenceWith | Ingoda River NERFINISHED ⓘ |
| freezesDuring | winter ⓘ |
| hasEcologicalSignificance | supports taiga and steppe ecosystems ⓘ |
| hasLeftTributary |
Borj River
NERFINISHED
ⓘ
Undurkhaan River NERFINISHED ⓘ |
| hasRightTributary |
Agutsa River
NERFINISHED
ⓘ
Balj River NERFINISHED ⓘ |
| headwaterOf | Amur River NERFINISHED ⓘ |
| historicalRegion | Transbaikalia NERFINISHED ⓘ |
| isHeadstreamOf | Amur River NERFINISHED ⓘ |
| length |
818 km
ⓘ
approximately 509 miles ⓘ |
| locatedIn |
Mongolia
NERFINISHED
ⓘ
Russia ⓘ Zabaykalsky Krai NERFINISHED ⓘ |
| mouthElevation | about 500 meters ⓘ |
| mouthLocation |
Zabaykalsky Krai
NERFINISHED
ⓘ
near Nizhny Tsasuchey ⓘ |
| namedIn |
Mongolian language
ⓘ
Russian language ⓘ |
| partOf |
Amur River basin
NERFINISHED
ⓘ
Mongolian river network ⓘ Russian Far East hydrological network ⓘ |
| region |
Inner Asia
NERFINISHED
ⓘ
Siberia NERFINISHED ⓘ |
| riverSystem | Amur River system NERFINISHED ⓘ |
| sourceElevation | about 1800 meters ⓘ |
| sourceLocation |
Khan Khentii Mountains
NERFINISHED
ⓘ
Khentii Province NERFINISHED ⓘ |
| terminatesIn | Shilka River NERFINISHED ⓘ |
| tributaryOf | Shilka 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: Onon River Description of subject: The Onon River is a major river in northeastern Asia that originates in Mongolia, flows through Russia’s Zabaykalsky Krai, and is considered one of the headwaters of the Amur River system.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.