Usta River
E480412
The Usta River is a waterway in Russia that serves as a tributary of the larger Vetluga River within the Volga basin.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Usta River canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2675027 — 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: Usta River Context triple: [Vetluga River, hasTributary, Usta River]
-
A.
Ngadda River
The Ngadda River is a waterway in northeastern Nigeria that flows through the city of Maiduguri and contributes to the region’s drainage into Lake Chad.
-
B.
Ruza River
The Ruza River is a waterway in western Russia that serves as one of the tributaries feeding into the Moskva River.
-
C.
Unzha River
The Unzha River is a significant waterway in central Russia that flows through Kostroma and neighboring regions before joining the Volga River.
-
D.
Sonai River
The Sonai River is a tributary waterway in northeastern India that feeds into the larger Barak River system.
-
E.
Buotama River
The Buotama River is a Siberian waterway in Russia’s Sakha Republic that flows through remote taiga landscapes before joining the Lena 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: Usta River Target entity description: The Usta River is a waterway in Russia that serves as a tributary of the larger Vetluga River within the Volga basin.
-
A.
Ngadda River
The Ngadda River is a waterway in northeastern Nigeria that flows through the city of Maiduguri and contributes to the region’s drainage into Lake Chad.
-
B.
Ruza River
The Ruza River is a waterway in western Russia that serves as one of the tributaries feeding into the Moskva River.
-
C.
Unzha River
The Unzha River is a significant waterway in central Russia that flows through Kostroma and neighboring regions before joining the Volga River.
-
D.
Sonai River
The Sonai River is a tributary waterway in northeastern India that feeds into the larger Barak River system.
-
E.
Buotama River
The Buotama River is a Siberian waterway in Russia’s Sakha Republic that flows through remote taiga landscapes before joining the Lena River.
- F. None of above. chosen
Statements (15)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| basinCountry | Russia ⓘ |
| continent | Europe ⓘ |
| country | Russia ⓘ |
| dischargesInto | Vetluga River ⓘ |
| flowsThrough | Russia ⓘ |
| hasMouthElevation | lowland region of European Russia ⓘ |
| hasWatershed | Volga River basin ⓘ |
| hydrologicalBasin |
Volga basin
ⓘ
linked to:
Volga River basin
|
| locatedIn | European Russia ⓘ |
| mouth | Vetluga River ⓘ |
| partOf |
Volga River drainage basin
ⓘ
linked to:
Volga River basin
|
| riverSystem | Volga River basin ⓘ |
| tributaryOf | Vetluga River ⓘ |
| watercourseType | tributary 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: Usta River Description of subject: The Usta River is a waterway in Russia that serves as a tributary of the larger Vetluga River within the Volga basin.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.