Tsna River
E452945
The Tsna River is a significant river in western Russia that flows through the Tambov and Ryazan regions before joining the Oka River.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Tsna River canonical | 7 |
How this entity was disambiguated
This entity first appeared as the object of triple T2530265 — 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: Tsna River Context triple: [Oka River, majorTributary, Tsna River]
-
A.
Shetrunji River
The Shetrunji River is a significant river in the Saurashtra (Kathiawar) region of Gujarat, India, known for supporting agriculture and local ecosystems before draining into the Arabian Sea.
-
B.
Lotru River
The Lotru River is a mountain river in Romania that flows through the Southern Carpathians and is known for its hydroelectric developments and scenic valley.
-
C.
Indre River
The Indre River is a tributary of the Loire in central France, known for flowing through the historic Touraine region and its picturesque rural landscapes.
-
D.
Tuul River
The Tuul River is a major river in central Mongolia that flows through the capital city, Ulaanbaatar, and plays an important role in the region’s ecology and water supply.
-
E.
Olza River
The Olza River is a Central European river that flows through the historical region of Cieszyn Silesia, forming part of the border between Poland and the Czech Republic.
- 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: Tsna River Target entity description: The Tsna River is a significant river in western Russia that flows through the Tambov and Ryazan regions before joining the Oka River.
-
A.
Shetrunji River
The Shetrunji River is a significant river in the Saurashtra (Kathiawar) region of Gujarat, India, known for supporting agriculture and local ecosystems before draining into the Arabian Sea.
-
B.
Lotru River
The Lotru River is a mountain river in Romania that flows through the Southern Carpathians and is known for its hydroelectric developments and scenic valley.
-
C.
Indre River
The Indre River is a tributary of the Loire in central France, known for flowing through the historic Touraine region and its picturesque rural landscapes.
-
D.
Tuul River
The Tuul River is a major river in central Mongolia that flows through the capital city, Ulaanbaatar, and plays an important role in the region’s ecology and water supply.
-
E.
Olza River
The Olza River is a Central European river that flows through the historical region of Cieszyn Silesia, forming part of the border between Poland and the Czech Republic.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| continent | Europe ⓘ |
| country | Russia ⓘ |
| dischargesInto | Oka River ⓘ |
| flowsThrough |
Ryazan Oblast
ⓘ
Tambov Oblast ⓘ |
| hasBasinCountry | Russia ⓘ |
| hasCityOnBank |
Kotovsk
ⓘ
Morshansk ⓘ Tambov ⓘ |
| languageOfToponym | Russian ⓘ |
| locatedIn |
Central Federal District of Russia
ⓘ
East European Plain ⓘ
linked to:
Russian Plain
western Russia ⓘ |
| mouthCountry | Russia ⓘ |
| mouthLocation | Oka River ⓘ |
| partOf | Volga River basin ⓘ |
| region |
Ryazan Oblast
ⓘ
Tambov Oblast ⓘ |
| riverSystem |
Oka River basin
ⓘ
linked to:
Oka River
|
| tributaryOf | Oka River ⓘ |
| usedFor |
fishing
ⓘ
irrigation ⓘ recreation ⓘ |
| watercourseType | freshwater 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: Tsna River Description of subject: The Tsna River is a significant river in western Russia that flows through the Tambov and Ryazan regions before joining the Oka River.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.