Angostura Dam
E156303
Angostura Dam is a hydroelectric power facility located on Chile’s Biobío River, contributing to the country’s renewable energy generation.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Angostura Dam canonical | 1 |
| Angostura hydroelectric dam | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1241459 — 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: Angostura Dam Context triple: [Biobío River, hasHydroelectricDam, Angostura Dam]
-
A.
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.
-
B.
Yacyretá Dam
The Yacyretá Dam is a large hydroelectric power plant on the border between Argentina and Paraguay that generates electricity by harnessing the flow of the Paraná River.
-
C.
Colbún Dam
Colbún Dam is a major hydroelectric dam in Chile that generates power from the Maule River and plays a key role in the country’s energy supply.
-
D.
Nickajack Dam
Nickajack Dam is a hydroelectric and navigation dam on the Tennessee River in southeastern Tennessee, forming Nickajack Lake and helping control flooding and support regional power generation.
-
E.
Cahora Bassa Dam
Cahora Bassa Dam is a major hydroelectric dam in Mozambique that forms one of Africa’s largest artificial lakes and supplies significant power to the region.
- 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: Angostura Dam Target entity description: Angostura Dam is a hydroelectric power facility located on Chile’s Biobío River, contributing to the country’s renewable energy generation.
-
A.
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.
-
B.
Yacyretá Dam
The Yacyretá Dam is a large hydroelectric power plant on the border between Argentina and Paraguay that generates electricity by harnessing the flow of the Paraná River.
-
C.
Colbún Dam
Colbún Dam is a major hydroelectric dam in Chile that generates power from the Maule River and plays a key role in the country’s energy supply.
-
D.
Nickajack Dam
Nickajack Dam is a hydroelectric and navigation dam on the Tennessee River in southeastern Tennessee, forming Nickajack Lake and helping control flooding and support regional power generation.
-
E.
Cahora Bassa Dam
Cahora Bassa Dam is a major hydroelectric dam in Mozambique that forms one of Africa’s largest artificial lakes and supplies significant power to the region.
- F. None of above. chosen
Statements (30)
| Predicate | Object |
|---|---|
| instanceOf |
dam
ⓘ
hydroelectric power station ⓘ |
| basinCountry | Chile ⓘ |
| commissioningDate | 2014 ⓘ |
| constructionCompany | Colbún S.A. ⓘ |
| constructionStart | 2008 ⓘ |
| continent | South America ⓘ |
| country | Chile ⓘ |
| countryGridContribution |
Chilean National Electric System
ⓘ
linked to:
Chilean national power system
|
| energyType | renewable energy ⓘ |
| environmentalImpact | affects local river ecosystem ⓘ |
| hasReservoir | Angostura Reservoir ⓘ |
| hasSpillway | yes ⓘ |
| installedCapacity | 316 MW ⓘ |
| locatedInRegion | Biobío Region ⓘ |
| locatedNearCity |
Quilleco
ⓘ
Santa Bárbara ⓘ |
| locatedOnRiver | Biobío River ⓘ |
| nearbyProtectedArea | Alto Biobío area ⓘ |
| numberOfTurbines | 3 ⓘ |
| openingYear | 2014 ⓘ |
| operator | Colbún S.A. ⓘ |
| owner | Colbún S.A. ⓘ |
| partOf | Chile’s renewable energy infrastructure ⓘ |
| plantType | run-of-the-river hydroelectric plant ⓘ |
| primaryPurpose | hydroelectric power generation ⓘ |
| reservoirUse | power generation ⓘ |
| riverSystem |
Biobío River basin
ⓘ
linked to:
Biobío River
|
| status | operational ⓘ |
| turbineType | Francis turbine ⓘ |
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: Angostura Dam Description of subject: Angostura Dam is a hydroelectric power facility located on Chile’s Biobío River, contributing to the country’s renewable energy generation.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Angostura Dam