Megrega River
E673421
The Megrega River is a smaller watercourse in northwestern Russia that serves as a left-bank tributary of the Svir River.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Megrega River canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4527142 — 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: Megrega River Context triple: [Svir River, hasLeftTributary, Megrega River]
-
A.
Progo River
Progo River is a major river in Central Java, Indonesia, flowing near the Borobudur Temple and eventually emptying into the Indian Ocean.
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B.
Agrio River
The Agrio River is a river in Argentina’s Patagonia region, known for flowing through Neuquén Province and contributing to the area's volcanic landscapes and hydroelectric resources.
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C.
Tambre River
The Tambre River is a significant waterway in Galicia, northwestern Spain, known for flowing through rural landscapes before emptying into the Atlantic Ocean near the city of A Coruña.
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D.
Livenza River
The Livenza River is a northeastern Italian river that flows from the Alps through the regions of Friuli Venezia Giulia and Veneto before emptying into the Adriatic Sea.
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E.
Syas River
The Syas River is a waterway in northwestern Russia that flows from the Valdai Hills through the Leningrad Oblast before emptying into Lake Ladoga.
- 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: Megrega River Target entity description: The Megrega River is a smaller watercourse in northwestern Russia that serves as a left-bank tributary of the Svir River.
-
A.
Progo River
Progo River is a major river in Central Java, Indonesia, flowing near the Borobudur Temple and eventually emptying into the Indian Ocean.
-
B.
Agrio River
The Agrio River is a river in Argentina’s Patagonia region, known for flowing through Neuquén Province and contributing to the area's volcanic landscapes and hydroelectric resources.
-
C.
Tambre River
The Tambre River is a significant waterway in Galicia, northwestern Spain, known for flowing through rural landscapes before emptying into the Atlantic Ocean near the city of A Coruña.
-
D.
Livenza River
The Livenza River is a northeastern Italian river that flows from the Alps through the regions of Friuli Venezia Giulia and Veneto before emptying into the Adriatic Sea.
-
E.
Syas River
The Syas River is a waterway in northwestern Russia that flows from the Valdai Hills through the Leningrad Oblast before emptying into Lake Ladoga.
- F. None of above. chosen
Statements (11)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| basinCountry | Russia ⓘ |
| continent | Europe ⓘ |
| country | Russia ⓘ |
| locatedIn | northwestern Russia ⓘ |
| mouthElevation | 0 ⓘ |
| mouthLocatedIn | Svir River ⓘ |
| riverSystem | Svir River basin ⓘ |
| tributaryOf | Svir River ⓘ |
| tributarySide | left-bank ⓘ |
| watercourseType | smaller 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: Megrega River Description of subject: The Megrega River is a smaller watercourse in northwestern Russia that serves as a left-bank tributary of the Svir River.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.