Treaty of Itaipu
E442396
The Treaty of Itaipu is the 1973 bilateral agreement between Brazil and Paraguay that established the terms for constructing and jointly operating the Itaipu hydroelectric dam on the Paraná River.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Treaty of Itaipu canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4466797 — 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: Treaty of Itaipu Context triple: [Itaipu Dam, foundingTreatyName, Treaty of Itaipu]
-
A.
Treaty of Asunción
The Treaty of Asunción is the 1991 agreement that created the Southern Common Market (MERCOSUR), establishing a regional trade bloc among several South American countries.
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B.
River Plate Basin Treaty
The River Plate Basin Treaty is a regional agreement among South American countries that establishes cooperative management and development of the Río de la Plata basin’s shared water resources.
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C.
Treaty of El Pardo
The Treaty of El Pardo was an 18th-century agreement between Spain and Portugal that redefined their colonial boundaries, including Spain’s claims in the region that would become Equatorial Guinea.
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D.
Treaty of Almazán
The Treaty of Almazán was a 14th-century peace agreement between Castile and Aragon that ended the protracted War of the Two Peters on the Iberian Peninsula.
-
E.
Revised Treaty of Chaguaramas
The Revised Treaty of Chaguaramas is the foundational agreement that restructured the Caribbean Community (CARICOM) and established the framework for deeper regional integration, including the CARICOM Single Market and Economy.
- 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: Treaty of Itaipu Target entity description: The Treaty of Itaipu is the 1973 bilateral agreement between Brazil and Paraguay that established the terms for constructing and jointly operating the Itaipu hydroelectric dam on the Paraná River.
-
A.
Treaty of Asunción
The Treaty of Asunción is the 1991 agreement that created the Southern Common Market (MERCOSUR), establishing a regional trade bloc among several South American countries.
-
B.
River Plate Basin Treaty
The River Plate Basin Treaty is a regional agreement among South American countries that establishes cooperative management and development of the Río de la Plata basin’s shared water resources.
-
C.
Treaty of El Pardo
The Treaty of El Pardo was an 18th-century agreement between Spain and Portugal that redefined their colonial boundaries, including Spain’s claims in the region that would become Equatorial Guinea.
-
D.
Treaty of Almazán
The Treaty of Almazán was a 14th-century peace agreement between Castile and Aragon that ended the protracted War of the Two Peters on the Iberian Peninsula.
-
E.
Revised Treaty of Chaguaramas
The Revised Treaty of Chaguaramas is the foundational agreement that restructured the Caribbean Community (CARICOM) and established the framework for deeper regional integration, including the CARICOM Single Market and Economy.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
bilateral treaty
ⓘ
international agreement ⓘ |
| amended | agreements and notes exchanged between Brazil and Paraguay after 1973 ⓘ |
| appliesTo | binational exploitation of shared water resources ⓘ |
| controversy |
criticisms in Paraguay over energy pricing and sovereignty
ⓘ
debates over fairness of financial terms for Paraguay ⓘ |
| country |
Brazil
ⓘ
Paraguay NERFINISHED ⓘ |
| dateSigned | 1973-04-26 ⓘ |
| defines |
debt repayment mechanisms for Itaipu construction costs
ⓘ
energy pricing rules for Itaipu production ⓘ legal framework for Itaipu Binacional ⓘ ownership structure of Itaipu hydroelectric plant ⓘ |
| enteredIntoForce | 1974 ⓘ |
| establishes | Itaipu Binacional NERFINISHED ⓘ |
| hasAnnex |
Itaipu financial and commercial annexes
ⓘ
technical annexes on construction and operation ⓘ |
| hasEffect | enabled construction of one of the world’s largest hydroelectric plants ⓘ |
| inForce | true ⓘ |
| involvesInfrastructure |
Itaipu Dam
NERFINISHED
ⓘ
Itaipu Hydroelectric Power Plant NERFINISHED ⓘ |
| language |
Portuguese
ⓘ
Spanish ⓘ |
| legalStatus | binding international treaty ⓘ |
| locationSigned | Brasília NERFINISHED ⓘ |
| motivatedBy | need to develop hydroelectric potential of Paraná River ⓘ |
| providesFor |
division of installed capacity between Brazil and Paraguay
ⓘ
equal participation of Brazil and Paraguay in Itaipu Binacional ⓘ joint management of Itaipu dam operations ⓘ obligation of Brazil to purchase Paraguay’s unused energy quota ⓘ |
| region | Brazil–Paraguay border ⓘ |
| relatedAgreement | Act of Foz do Iguaçu NERFINISHED ⓘ |
| relatedTo | Treaty of the River Plate Basin NERFINISHED ⓘ |
| relatesTo |
Brazil–Paraguay relations
ⓘ
border issues on the Paraná River ⓘ hydroelectric power in South America ⓘ |
| replaced | earlier understandings on utilization of Paraná River potential ⓘ |
| river | Paraná River NERFINISHED ⓘ |
| sector |
energy
ⓘ
hydropower ⓘ |
| setsDuration | long-term regime for Itaipu exploitation ⓘ |
| signatory |
Federative Republic of Brazil
NERFINISHED
ⓘ
Republic of Paraguay NERFINISHED ⓘ |
| subject |
construction of Itaipu hydroelectric dam
ⓘ
financing of Itaipu project ⓘ joint operation of Itaipu hydroelectric dam ⓘ sharing of hydroelectric energy ⓘ |
| yearSigned | 1973 ⓘ |
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: Treaty of Itaipu Description of subject: The Treaty of Itaipu is the 1973 bilateral agreement between Brazil and Paraguay that established the terms for constructing and jointly operating the Itaipu hydroelectric dam on the Paraná River.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.