Kotmale Hydroelectric Power Station
E554234
Kotmale Hydroelectric Power Station is a major Sri Lankan hydroelectric facility that harnesses the waters of the Mahaweli River to generate electricity as part of the country's largest river basin development scheme.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Kotmale Hydroelectric Power Station canonical | 1 |
| Rantembe Hydroelectric Power Station | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5887611 — 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: Kotmale Hydroelectric Power Station Context triple: [Mahaweli River, majorHydropowerPlant, Kotmale Hydroelectric Power Station]
-
A.
Kurpsai Hydroelectric Power Plant
Kurpsai Hydroelectric Power Plant is a major hydroelectric facility in Kyrgyzstan that generates electricity by harnessing the flow of the Naryn River.
-
B.
Karuma Hydropower Station
Karuma Hydropower Station is a major hydroelectric power plant in Uganda that harnesses the flow of the Victoria Nile to generate electricity for the national grid.
-
C.
Vogelgrun hydroelectric power station
The Vogelgrun hydroelectric power station is a run-of-river hydroelectric facility on the Rhine in eastern France, contributing to regional electricity generation and navigation management.
-
D.
Plavinas Hydroelectric Power Plant
Plavinas Hydroelectric Power Plant is one of the largest hydroelectric power stations in the Baltic region, located in Latvia and serving as a major source of renewable electricity.
-
E.
Vamma power station
Vamma power station is a major hydroelectric power plant in Norway, harnessing the flow of the Glomma River to generate renewable energy.
- 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: Kotmale Hydroelectric Power Station Target entity description: Kotmale Hydroelectric Power Station is a major Sri Lankan hydroelectric facility that harnesses the waters of the Mahaweli River to generate electricity as part of the country's largest river basin development scheme.
-
A.
Kurpsai Hydroelectric Power Plant
Kurpsai Hydroelectric Power Plant is a major hydroelectric facility in Kyrgyzstan that generates electricity by harnessing the flow of the Naryn River.
-
B.
Karuma Hydropower Station
Karuma Hydropower Station is a major hydroelectric power plant in Uganda that harnesses the flow of the Victoria Nile to generate electricity for the national grid.
-
C.
Vogelgrun hydroelectric power station
The Vogelgrun hydroelectric power station is a run-of-river hydroelectric facility on the Rhine in eastern France, contributing to regional electricity generation and navigation management.
-
D.
Plavinas Hydroelectric Power Plant
Plavinas Hydroelectric Power Plant is one of the largest hydroelectric power stations in the Baltic region, located in Latvia and serving as a major source of renewable electricity.
-
E.
Vamma power station
Vamma power station is a major hydroelectric power plant in Norway, harnessing the flow of the Glomma River to generate renewable energy.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
hydroelectric power station
ⓘ
power plant ⓘ |
| basinCountry | Sri Lanka NERFINISHED ⓘ |
| category |
Dams in Sri Lanka
ⓘ
Hydroelectric power stations in Sri Lanka ⓘ |
| continent | Asia ⓘ |
| country | Sri Lanka ⓘ |
| damType | concrete gravity dam ⓘ |
| energySource | water ⓘ |
| gridConnection | Sri Lankan national grid ⓘ |
| hasLanguage |
Sinhala
NERFINISHED
ⓘ
Tamil ⓘ |
| isPartOf | Mahaweli complex of hydropower plants NERFINISHED ⓘ |
| locatedIn |
Central Province, Sri Lanka
NERFINISHED
ⓘ
Kotmale, Sri Lanka NERFINISHED ⓘ South Asia ⓘ |
| locatedOn | Mahaweli River NERFINISHED ⓘ |
| operator | Ceylon Electricity Board NERFINISHED ⓘ |
| ownedBy | Government of Sri Lanka NERFINISHED ⓘ |
| partOf |
Mahaweli Development Programme
NERFINISHED
ⓘ
Mahaweli River basin development scheme NERFINISHED ⓘ Sri Lanka’s largest river basin development project ⓘ |
| primaryFuel | hydropower ⓘ |
| purpose |
electricity generation
ⓘ
hydropower generation ⓘ |
| regionServed | Sri Lanka NERFINISHED ⓘ |
| river | Mahaweli River NERFINISHED ⓘ |
| status | operational ⓘ |
| uses | reservoir ⓘ |
| watercourse | Mahaweli River NERFINISHED ⓘ |
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: Kotmale Hydroelectric Power Station Description of subject: Kotmale Hydroelectric Power Station is a major Sri Lankan hydroelectric facility that harnesses the waters of the Mahaweli River to generate electricity as part of the country's largest river basin development scheme.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Rantembe Hydroelectric Power Station