Perur weir
E337852
Perur weir is a diversion structure on the Noyyal River near Coimbatore in Tamil Nadu, India, used to regulate and distribute river water for irrigation and local needs.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Perur weir canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3210658 — 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: Perur weir Context triple: [Noyyal, hasStructure, Perur weir]
-
A.
Torrumbarry Weir
Torrumbarry Weir is a major river regulation structure on the Murray River in Victoria, Australia, used for water storage, irrigation, and navigation control.
-
B.
Feildes Weir
Feildes Weir is a historic river weir on the River Lea in England, used to control water levels and flow for navigation and water management.
-
C.
Bath Weir
Bath Weir is a distinctive curved weir on the River Avon in the city of Bath, England, known as a prominent historic and scenic riverside feature near Pulteney Bridge.
-
D.
Keswick Dam
Keswick Dam is a concrete gravity dam on the Sacramento River in Northern California that regulates flows and generates hydroelectric power as part of the region’s large federal water management system.
-
E.
Nimbus Dam
Nimbus Dam is a concrete gravity dam on the American River in California that forms Lake Natoma and helps regulate water flow, provide hydroelectric power, and support regional water supply and recreation.
- 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: Perur weir Target entity description: Perur weir is a diversion structure on the Noyyal River near Coimbatore in Tamil Nadu, India, used to regulate and distribute river water for irrigation and local needs.
-
A.
Torrumbarry Weir
Torrumbarry Weir is a major river regulation structure on the Murray River in Victoria, Australia, used for water storage, irrigation, and navigation control.
-
B.
Feildes Weir
Feildes Weir is a historic river weir on the River Lea in England, used to control water levels and flow for navigation and water management.
-
C.
Bath Weir
Bath Weir is a distinctive curved weir on the River Avon in the city of Bath, England, known as a prominent historic and scenic riverside feature near Pulteney Bridge.
-
D.
Keswick Dam
Keswick Dam is a concrete gravity dam on the Sacramento River in Northern California that regulates flows and generates hydroelectric power as part of the region’s large federal water management system.
-
E.
Nimbus Dam
Nimbus Dam is a concrete gravity dam on the American River in California that forms Lake Natoma and helps regulate water flow, provide hydroelectric power, and support regional water supply and recreation.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
diversion structure
ⓘ
weir ⓘ |
| continent | Asia ⓘ |
| country | India ⓘ |
| hasFunction |
diverting water into irrigation channels
ⓘ
maintaining water levels in downstream reaches ⓘ |
| locatedIn |
Coimbatore
ⓘ
Coimbatore district ⓘ Perur ⓘ Tamil Nadu ⓘ |
| locatedInBasin | Cauvery River basin ⓘ |
| locatedInCountrySubdivision | South India ⓘ |
| locatedOnRiver | Noyyal River ⓘ |
| nearbyCity | Coimbatore ⓘ |
| partOf | local irrigation infrastructure of Noyyal River ⓘ |
| purpose |
distribution of river water for local needs
ⓘ
irrigation water diversion ⓘ regulation of river flow ⓘ |
| regionServed |
Coimbatore region
ⓘ
linked to:
Coimbatore district
areas around Perur ⓘ |
| state | Tamil Nadu ⓘ |
| usedFor |
supplying water for agriculture
ⓘ
supplying water for nearby villages ⓘ |
| watercourse | Noyyal River ⓘ |
| waterManagementRole | regulation of seasonal flows of Noyyal 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: Perur weir Description of subject: Perur weir is a diversion structure on the Noyyal River near Coimbatore in Tamil Nadu, India, used to regulate and distribute river water for irrigation and local needs.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.