Paraíba do Sul River
E231774
The Paraíba do Sul River is an important waterway in southeastern Brazil that supports regional agriculture, industry, and urban water supply across the states of São Paulo, Rio de Janeiro, and Minas Gerais.
All labels observed (8)
| Label | Occurrences |
|---|---|
| Paraíba do Sul River canonical | 10 |
| Paraíba Valley | 3 |
| Paraíba do Sul | 1 |
| Paraíba do Sul basin | 1 |
| Paraíba do Sul ecoregion | 1 |
| Paraíba do Sul river | 1 |
| Paraíba do Sul river basin | 1 |
| Rio Paraíba do Sul | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2068869 — 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: Paraíba do Sul River Context triple: [Southeast Region of Brazil, majorRiver, Paraíba do Sul River]
-
A.
Sergipe River
The Sergipe River is a significant waterway in the Brazilian state of Sergipe, flowing through key municipalities and playing an important role in the region’s ecology and economy.
-
B.
Sousa River
The Sousa River is a significant river in northern Portugal that feeds into the Douro River and contributes to its drainage basin.
-
C.
Paranaíba River
The Paranaíba River is a major river in central Brazil that forms part of the upper Paraná River basin and serves as an important waterway for agriculture, hydroelectric power, and regional ecosystems.
-
D.
Gilão River
The Gilão River is a waterway in Portugal’s Algarve region that flows through the historic town of Tavira before reaching the Atlantic Ocean.
-
E.
Acre River
The Acre River is a major tributary of the Purus River in western Amazonia, flowing through Peru, Bolivia, and Brazil and serving as an important waterway for the surrounding rainforest regions.
- 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: Paraíba do Sul River Target entity description: The Paraíba do Sul River is an important waterway in southeastern Brazil that supports regional agriculture, industry, and urban water supply across the states of São Paulo, Rio de Janeiro, and Minas Gerais.
-
A.
Sergipe River
The Sergipe River is a significant waterway in the Brazilian state of Sergipe, flowing through key municipalities and playing an important role in the region’s ecology and economy.
-
B.
Sousa River
The Sousa River is a significant river in northern Portugal that feeds into the Douro River and contributes to its drainage basin.
-
C.
Paranaíba River
The Paranaíba River is a major river in central Brazil that forms part of the upper Paraná River basin and serves as an important waterway for agriculture, hydroelectric power, and regional ecosystems.
-
D.
Gilão River
The Gilão River is a waterway in Portugal’s Algarve region that flows through the historic town of Tavira before reaching the Atlantic Ocean.
-
E.
Acre River
The Acre River is a major tributary of the Purus River in western Amazonia, flowing through Peru, Bolivia, and Brazil and serving as an important waterway for the surrounding rainforest regions.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
geographical feature
ⓘ
river ⓘ |
| alsoKnownAs |
Paraíba do Sul River
ⓘ
surface form:
Rio Paraíba do Sul
|
| basinCountry | Brazil ⓘ |
| continent | South America ⓘ |
| country | Brazil ⓘ |
| crossedBy |
BR-116 highway
ⓘ
surface form:
Rodovia Presidente Dutra (BR-116)
|
| drainageBasin |
Paraíba do Sul River
self-linksurface differs
ⓘ
surface form:
Paraíba do Sul basin
|
| ecoregion |
Paraíba do Sul River
self-linksurface differs
ⓘ
surface form:
Paraíba do Sul ecoregion
|
| environmentalIssue |
deforestation in watershed
ⓘ
industrial contamination ⓘ sedimentation ⓘ water pollution ⓘ |
| flowsThrough |
Minas Gerais
ⓘ
surface form:
State of Minas Gerais
State of Rio de Janeiro ⓘ state of São Paulo ⓘ
surface form:
State of São Paulo
|
| hasBridge | President Dutra Highway bridges ⓘ |
| hasDam |
Funil Hydroelectric Plant
ⓘ
Santa Cecília dam ⓘ |
| importance |
major water source for Rio de Janeiro metropolitan area
ⓘ
supports regional agriculture ⓘ supports regional industry ⓘ |
| languageOfName | Portuguese ⓘ |
| length | approximately 1137 km ⓘ |
| locatedIn |
Southeast Region of Brazil
ⓘ
surface form:
Southeast Region, Brazil
|
| majorTributary |
Muriae River
NERFINISHED
ⓘ
Paraibuna River (Minas Gerais) ⓘ Paraibuna River (Minas Gerais) ⓘ
surface form:
Paraibuna River (São Paulo)
Guapimirim River ⓘ
surface form:
Piabanha River
Pomba River ⓘ |
| mouth | Atlantic Ocean ⓘ |
| mouthLocation | State of Rio de Janeiro ⓘ |
| nameMeaning | “Paraíba of the South” in Portuguese ⓘ |
| partOf |
Atlantic Forest biome
ⓘ
surface form:
Atlantic Forest biome region
|
| passesThrough |
Barra do Piraí
ⓘ
Campos dos Goytacazes ⓘ São José dos Campos ⓘ Taubaté ⓘ Volta Redonda ⓘ |
| region | Vale do Paraíba ⓘ |
| sourceLocation |
Serra da Bocaina
ⓘ
state of São Paulo ⓘ
surface form:
State of São Paulo
|
| usedFor |
hydroelectric power generation
ⓘ
industrial water supply ⓘ irrigation ⓘ navigation (local and regional) ⓘ urban water supply ⓘ |
| waterManagementAuthority | Agência Nacional de Águas e Saneamento Básico (ANA) ⓘ |
| waterTransfer | diversion to Guandu River system ⓘ |
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: Paraíba do Sul River Description of subject: The Paraíba do Sul River is an important waterway in southeastern Brazil that supports regional agriculture, industry, and urban water supply across the states of São Paulo, Rio de Janeiro, and Minas Gerais.
Referenced by (19)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
São José dos Campos
this entity surface form:
Paraíba do Sul basin
this entity surface form:
Rio Paraíba do Sul
this entity surface form:
Paraíba do Sul ecoregion
subject surface form:
Região Serrana (Rio de Janeiro)
this entity surface form:
Paraíba do Sul
this entity surface form:
Paraíba do Sul river
this entity surface form:
Paraíba Valley
this entity surface form:
Paraíba Valley
this entity surface form:
Paraíba do Sul river basin