Rapel Dam
E720076
Rapel Dam is a major hydroelectric and irrigation dam in central Chile that forms the Rapel Reservoir on the Rapel River.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Rapel Dam canonical | 5 |
| Rapel Hydroelectric Power Plant | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7957046 — 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: Rapel Dam Context triple: [Rapel River, hasDam, Rapel Dam]
-
A.
Karapiro Dam
Karapiro Dam is a major hydroelectric dam in New Zealand that forms Lake Karapiro and plays a key role in power generation and water management on the Waikato River.
-
B.
Angostura Dam
Angostura Dam is a hydroelectric power facility located on Chile’s Biobío River, contributing to the country’s renewable energy generation.
-
C.
Angostura Dam
Angostura Dam is a major hydroelectric dam in Mexico that forms part of the country’s important Grijalva River power generation system.
-
D.
Pehuenche Dam
Pehuenche Dam is a hydroelectric dam on the upper Bío Bío River in Chile, forming part of a cascade of power-generating reservoirs in the Andean foothills.
-
E.
Salto Grande Dam
Salto Grande Dam is a large hydroelectric dam and binational power station on the Uruguay River, jointly operated by Argentina and Uruguay.
- 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: Rapel Dam Target entity description: Rapel Dam is a major hydroelectric and irrigation dam in central Chile that forms the Rapel Reservoir on the Rapel River.
-
A.
Karapiro Dam
Karapiro Dam is a major hydroelectric dam in New Zealand that forms Lake Karapiro and plays a key role in power generation and water management on the Waikato River.
-
B.
Angostura Dam
Angostura Dam is a hydroelectric power facility located on Chile’s Biobío River, contributing to the country’s renewable energy generation.
-
C.
Angostura Dam
Angostura Dam is a major hydroelectric dam in Mexico that forms part of the country’s important Grijalva River power generation system.
-
D.
Pehuenche Dam
Pehuenche Dam is a hydroelectric dam on the upper Bío Bío River in Chile, forming part of a cascade of power-generating reservoirs in the Andean foothills.
-
E.
Salto Grande Dam
Salto Grande Dam is a large hydroelectric dam and binational power station on the Uruguay River, jointly operated by Argentina and Uruguay.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
gravity dam
ⓘ
hydroelectric dam ⓘ irrigation dam ⓘ |
| basinCountry | Chile ⓘ |
| constructionBegan | 1960s ⓘ |
| continent | South America ⓘ |
| country | Chile ⓘ |
| energySource | hydropower ⓘ |
| formsReservoir | Rapel Reservoir ⓘ |
| hasPowerPlant |
Rapel Hydroelectric Power Plant
ⓘ
linked to:
Rapel Dam
|
| hasSpillway | yes ⓘ |
| installedCapacity | 377 MW ⓘ |
| isPartOf | Rapel River hydroelectric system ⓘ |
| languageOfName | Spanish ⓘ |
| locatedIn |
O'Higgins Region
ⓘ
linked to:
O’Higgins Region
|
| locatedNear |
Las Cabras
ⓘ
Pichidegua ⓘ |
| locatedOnRiver | Rapel River ⓘ |
| namedAfter | Rapel River ⓘ |
| openingDate | 1968 ⓘ |
| operator | Endesa Chile ⓘ |
| purpose |
hydroelectric power generation
ⓘ
irrigation ⓘ |
| regionServed | central Chile ⓘ |
| reservoirName | Rapel Reservoir ⓘ |
| reservoirUse |
flood control
ⓘ
recreation ⓘ water storage ⓘ |
| riverBasin |
Rapel River basin
ⓘ
linked to:
Rapel River
|
| structureType | concrete gravity dam ⓘ |
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: Rapel Dam Description of subject: Rapel Dam is a major hydroelectric and irrigation dam in central Chile that forms the Rapel Reservoir on the Rapel River.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Rapel Dam