Nangbeto Dam
E775708
Nangbeto Dam is a hydroelectric and irrigation dam on the Mono River in West Africa, jointly developed by Togo and Benin to generate power and support regional water management.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Nangbeto Dam canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T9082700 — 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: Nangbeto Dam Context triple: [Mono River basin, contains, Nangbeto Dam]
-
A.
Pracana Dam
Pracana Dam is a hydroelectric and water management dam located on the Ocreza River in central Portugal, contributing to the regulation and use of resources in the Tagus River basin.
-
B.
Saguling Dam
Saguling Dam is a major hydroelectric and multipurpose dam in West Java, Indonesia, forming one of the key reservoirs on the Citarum River.
-
C.
Pantabangan Dam
Pantabangan Dam is a major multi-purpose dam in the Philippines known for irrigation, flood control, and hydroelectric power generation in Central Luzon.
-
D.
Pangue Dam
Pangue Dam is a major hydroelectric power facility in Chile, built on the Biobío River to generate electricity and support the country’s energy needs.
-
E.
Malpaso Dam
Malpaso Dam is a major hydroelectric dam in Chiapas, Mexico, forming one of the country’s largest reservoirs and playing a key role in national power generation and flood control.
- 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: Nangbeto Dam Target entity description: Nangbeto Dam is a hydroelectric and irrigation dam on the Mono River in West Africa, jointly developed by Togo and Benin to generate power and support regional water management.
-
A.
Pracana Dam
Pracana Dam is a hydroelectric and water management dam located on the Ocreza River in central Portugal, contributing to the regulation and use of resources in the Tagus River basin.
-
B.
Saguling Dam
Saguling Dam is a major hydroelectric and multipurpose dam in West Java, Indonesia, forming one of the key reservoirs on the Citarum River.
-
C.
Pantabangan Dam
Pantabangan Dam is a major multi-purpose dam in the Philippines known for irrigation, flood control, and hydroelectric power generation in Central Luzon.
-
D.
Pangue Dam
Pangue Dam is a major hydroelectric power facility in Chile, built on the Biobío River to generate electricity and support the country’s energy needs.
-
E.
Malpaso Dam
Malpaso Dam is a major hydroelectric dam in Chiapas, Mexico, forming one of the country’s largest reservoirs and playing a key role in national power generation and flood control.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
gravity dam
ⓘ
hydroelectric dam ⓘ irrigation dam ⓘ |
| annualGeneration | ~150 GWh ⓘ |
| basinCountry |
Benin
NERFINISHED
ⓘ
Togo NERFINISHED ⓘ |
| constructionStartDate | 1984 ⓘ |
| continent | Africa ⓘ |
| country |
Benin
NERFINISHED
ⓘ
Togo NERFINISHED ⓘ |
| crossBorderProject | yes ⓘ |
| developer |
Benin
NERFINISHED
ⓘ
Togo NERFINISHED ⓘ |
| fundedBy |
African Development Bank
NERFINISHED
ⓘ
Caisse Centrale de Coopération Économique NERFINISHED ⓘ European Investment Bank NERFINISHED ⓘ World Bank NERFINISHED ⓘ |
| gridConnection |
Benin national grid
NERFINISHED
ⓘ
Togo national grid NERFINISHED ⓘ |
| hasSpillway | yes ⓘ |
| height | ~52 metres ⓘ |
| impact |
changes in downstream river flow regime
ⓘ
creation of fisheries on the reservoir ⓘ displacement of local communities ⓘ regional power supply for Togo and Benin ⓘ |
| inception | 1987 ⓘ |
| installedCapacity | 65 MW ⓘ |
| length | ~1,870 metres ⓘ |
| locatedInAdministrativeTerritory | Plateaux Region NERFINISHED ⓘ |
| locatedInRegion | West Africa NERFINISHED ⓘ |
| locatedNear | Nangbeto NERFINISHED ⓘ |
| locatedOnRiver | Mono River NERFINISHED ⓘ |
| numberOfTurbines | 2 ⓘ |
| openingDate | 1987 ⓘ |
| operator | Communauté Électrique du Bénin NERFINISHED ⓘ |
| ownedBy |
Benin
NERFINISHED
ⓘ
Togo NERFINISHED ⓘ |
| partOf | Mono River development program NERFINISHED ⓘ |
| purpose |
fisheries development
ⓘ
flood control ⓘ irrigation ⓘ power generation ⓘ |
| reservoirName | Nangbeto Reservoir NERFINISHED ⓘ |
| reservoirSurfaceArea | ~180 square kilometres ⓘ |
| spillwayType | gated overflow spillway ⓘ |
| turbineType | Francis turbine ⓘ |
| waterManagementFunction | flow regulation on Mono 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: Nangbeto Dam Description of subject: Nangbeto Dam is a hydroelectric and irrigation dam on the Mono River in West Africa, jointly developed by Togo and Benin to generate power and support regional water management.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.