Itaipu Dam
E98397
Itaipu Dam is a massive hydroelectric power plant on the Brazil–Paraguay border, once the world’s largest in installed capacity and still one of the most important sources of renewable energy in South America.
All labels observed (9)
How this entity was disambiguated
This entity first appeared as the object of triple T822908 — 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: Itaipu Dam Context triple: [Paraná River, hasDam, Itaipu Dam]
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A.
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.
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B.
Three Gorges Dam
The Three Gorges Dam is a massive hydroelectric gravity dam in China, renowned as one of the world’s largest power stations and a major flood-control and navigation project.
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C.
Aswan High Dam
The Aswan High Dam is a massive embankment dam on the Nile River in southern Egypt, built in the 1960s to control flooding, provide hydroelectric power, and improve irrigation, while also causing the creation of Lake Nasser and the displacement of communities and archaeological sites in Nubia.
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D.
Itezhi-Tezhi Dam
Itezhi-Tezhi Dam is a major hydroelectric and water-regulation dam in Zambia that helps control flows and generate power along the Kafue River system, a key tributary of the Zambezi.
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E.
Hoover Dam
Hoover Dam is a massive concrete arch-gravity dam on the Colorado River, renowned as a landmark feat of 20th-century American engineering and a major source of hydroelectric power and water management in the Southwest.
- 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: Itaipu Dam Target entity description: Itaipu Dam is a massive hydroelectric power plant on the Brazil–Paraguay border, once the world’s largest in installed capacity and still one of the most important sources of renewable energy in South America.
-
A.
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.
-
B.
Three Gorges Dam
The Three Gorges Dam is a massive hydroelectric gravity dam in China, renowned as one of the world’s largest power stations and a major flood-control and navigation project.
-
C.
Aswan High Dam
The Aswan High Dam is a massive embankment dam on the Nile River in southern Egypt, built in the 1960s to control flooding, provide hydroelectric power, and improve irrigation, while also causing the creation of Lake Nasser and the displacement of communities and archaeological sites in Nubia.
-
D.
Itezhi-Tezhi Dam
Itezhi-Tezhi Dam is a major hydroelectric and water-regulation dam in Zambia that helps control flows and generate power along the Kafue River system, a key tributary of the Zambezi.
-
E.
Hoover Dam
Hoover Dam is a massive concrete arch-gravity dam on the Colorado River, renowned as a landmark feat of 20th-century American engineering and a major source of hydroelectric power and water management in the Southwest.
- F. None of above. chosen
Statements (51)
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: Itaipu Dam Description of subject: Itaipu Dam is a massive hydroelectric power plant on the Brazil–Paraguay border, once the world’s largest in installed capacity and still one of the most important sources of renewable energy in South America.
Referenced by (26)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Itaipu Dam
linked to: Itaipu Dam
linked to: Itaipu Dam
linked to: Itaipu Dam
linked to: Itaipu Dam
linked to: Itaipu Dam
linked to: Itaipu Dam
linked to: Itaipu Dam
linked to: Itaipu Dam
subject linked to:
Paraná River (on its eastern border via Corrientes)
linked to: Itaipu Dam
linked to: Itaipu Dam
linked to: Itaipu Dam
linked to: Itaipu Dam