Vaigai River
E346128
The Vaigai River is a major river in the southern Indian state of Tamil Nadu, flowing through cities like Madurai and serving as an important source of irrigation and drinking water.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Vaigai River canonical | 13 |
| Vaigai River system | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T1569514 — 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: Vaigai River Context triple: [Tamil Nadu, contains, Vaigai River]
-
A.
Ruak River
The Ruak River is a tributary of the Mekong in Southeast Asia that forms part of the natural boundary between Thailand and Myanmar in the Golden Triangle region.
-
B.
Tuivai River
The Tuivai River is a tributary waterway in northeastern India that contributes to the Barak River system and helps drain parts of the surrounding hilly terrain.
-
C.
Rakaia River
The Rakaia River is a major braided river in New Zealand’s South Island, known for its wide shingle beds, salmon fishing, and dramatic alpine-to-coast course through the Canterbury region.
-
D.
Tok River
Tok River is a tributary watercourse that feeds into the Samara River within the Volga River basin in European Russia.
-
E.
Kuma River
The Kuma River is a significant river in southwestern Russia that flows through the North Caucasus region, including Stavropol Krai, before emptying into the Caspian 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: Vaigai River Target entity description: The Vaigai River is a major river in the southern Indian state of Tamil Nadu, flowing through cities like Madurai and serving as an important source of irrigation and drinking water.
-
A.
Ruak River
The Ruak River is a tributary of the Mekong in Southeast Asia that forms part of the natural boundary between Thailand and Myanmar in the Golden Triangle region.
-
B.
Tuivai River
The Tuivai River is a tributary waterway in northeastern India that contributes to the Barak River system and helps drain parts of the surrounding hilly terrain.
-
C.
Rakaia River
The Rakaia River is a major braided river in New Zealand’s South Island, known for its wide shingle beds, salmon fishing, and dramatic alpine-to-coast course through the Canterbury region.
-
D.
Tok River
Tok River is a tributary watercourse that feeds into the Samara River within the Volga River basin in European Russia.
-
E.
Kuma River
The Kuma River is a significant river in southwestern Russia that flows through the North Caucasus region, including Stavropol Krai, before emptying into the Caspian Sea.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
geographical feature
ⓘ
river ⓘ |
| associatedWith | ancient Pandya kingdom region ⓘ |
| basinCountry | India ⓘ |
| basinState | Tamil Nadu ⓘ |
| category | Rivers of Tamil Nadu ⓘ |
| climateInfluence | supports irrigation in semi-arid regions of Tamil Nadu ⓘ |
| country | India ⓘ |
| culturalSignificance | central to the identity of Madurai ⓘ |
| damLocation | near Andipatti ⓘ |
| emptiesInto | Bay of Bengal ⓘ |
| flowsDirection | generally eastward ⓘ |
| flowsThrough |
Dindigul district
ⓘ
Madurai ⓘ Ramanathapuram district ⓘ Sivaganga district ⓘ Theni district ⓘ |
| hasBasinArea | primarily within Tamil Nadu ⓘ |
| hasBridge | Albert Victor Bridge in Madurai ⓘ |
| hasDam | Vaigai Dam ⓘ |
| hasTributary |
Gundar River
ⓘ
Kridhumaal River ⓘ Manjalar River ⓘ Suruli River ⓘ Varaha River ⓘ |
| importance | major river of Tamil Nadu ⓘ |
| knownFor | supporting ancient settlements in Madurai region ⓘ |
| length | approximately 258 kilometers ⓘ |
| locatedIn |
Tamil Nadu
ⓘ
southern India ⓘ
linked to:
South India
|
| mouthLocation | Palk Bay ⓘ |
| passesNear | Periyar Wildlife Sanctuary region via diverted waters ⓘ |
| passesThroughCity |
Madurai
ⓘ
Theni ⓘ |
| primaryUse |
agriculture support
ⓘ
drinking water supply ⓘ irrigation ⓘ |
| region |
Madurai region
ⓘ
linked to:
Madurai district
|
| sourceLocation |
Varusanadu Hills
ⓘ
linked to:
Azhagar Hills
Western Ghats ⓘ |
| state | Tamil Nadu ⓘ |
| supportsCrop |
banana
ⓘ
paddy ⓘ sugarcane ⓘ |
| waterResourceFor |
Madurai city
ⓘ
linked to:
Madurai
Ramanathapuram district farmers ⓘ Theni district farmers ⓘ |
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: Vaigai River Description of subject: The Vaigai River is a major river in the southern Indian state of Tamil Nadu, flowing through cities like Madurai and serving as an important source of irrigation and drinking water.
Referenced by (15)
Full triples — surface form annotated when it differs from this entity's canonical label.