Tietê River
E144727
The Tietê River is a significant waterway in southeastern Brazil that flows across the state of São Paulo and plays a key role in the region’s ecology, economy, and urban landscape.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Tietê River canonical | 6 |
| Tietê River basin | 3 |
| Tietê River Basin | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T822892 — 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: Tietê River Context triple: [Paraná River, majorTributary, Tietê River]
-
A.
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.
-
B.
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.
-
C.
Santa Catarina River
The Santa Catarina River is a seasonal river in northeastern Mexico that runs through the city of Monterrey and is known for its dramatic floods and role in shaping the urban landscape.
-
D.
Xingu River
The Xingu River is a major river in northern Brazil that flows through the Amazon rainforest, supporting rich biodiversity and numerous Indigenous communities before joining the Amazon River.
-
E.
Tapajós River
The Tapajós River is a large clearwater river in northern Brazil that flows through the Amazon rainforest and is one of the Amazon River’s most significant tributaries.
- 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: Tietê River Target entity description: The Tietê River is a significant waterway in southeastern Brazil that flows across the state of São Paulo and plays a key role in the region’s ecology, economy, and urban landscape.
-
A.
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.
-
B.
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.
-
C.
Santa Catarina River
The Santa Catarina River is a seasonal river in northeastern Mexico that runs through the city of Monterrey and is known for its dramatic floods and role in shaping the urban landscape.
-
D.
Xingu River
The Xingu River is a major river in northern Brazil that flows through the Amazon rainforest, supporting rich biodiversity and numerous Indigenous communities before joining the Amazon River.
-
E.
Tapajós River
The Tapajós River is a large clearwater river in northern Brazil that flows through the Amazon rainforest and is one of the Amazon River’s most significant tributaries.
- F. None of above. chosen
Statements (59)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| alsoKnownAs | Rio Tietê ⓘ |
| basinCountry | Brazil ⓘ |
| continent | South America ⓘ |
| country | Brazil ⓘ |
| crosses |
São Paulo metropolitan area
ⓘ
surface form:
Metropolitan Region of São Paulo
|
| directionOfFlow | east to west ⓘ |
| ecologicalRole | supports riparian and wetland ecosystems in São Paulo state ⓘ |
| environmentalIssue |
domestic sewage contamination
ⓘ
industrial pollution ⓘ solid waste accumulation ⓘ |
| etymology | name derived from Tupi language ⓘ |
| flowsThrough |
Anhembi
ⓘ
Barra Bonita ⓘ Laranjal Paulista ⓘ Mogi das Cruzes ⓘ Pirapora do Bom Jesus ⓘ Salto, Argentina ⓘ
surface form:
Salto
São Paulo ⓘ
surface form:
São Paulo (city)
Tietê (municipality) ⓘ Tietê River self-linksurface differs ⓘ
surface form:
Tietê River Basin
|
| hasDam |
Bariri Dam
ⓘ
Barra Bonita Dam ⓘ Bariri Dam ⓘ
surface form:
Ibitinga Dam
Bariri Dam ⓘ
surface form:
Nova Avanhandava Dam
Promissão Dam ⓘ Três Irmãos Dam ⓘ |
| hasInfrastructure | Marginal Tietê expressway ⓘ |
| hasTributary |
Batalha River
ⓘ
Jacuí River (São Paulo) ⓘ Pinheiros River ⓘ Tamanduateí River ⓘ Tietê-Pinheiros Canal system ⓘ |
| historicalUse |
colonial-era inland exploration route
ⓘ
route for bandeirantes expeditions ⓘ |
| knownFor |
heavy pollution in the São Paulo metropolitan area
ⓘ
urban flooding issues in São Paulo ⓘ |
| languageOfName | Portuguese ⓘ |
| length | approximately 1150 km ⓘ |
| locatedIn |
Southeast Region of Brazil
ⓘ
surface form:
Southeast Region, Brazil
state of São Paulo ⓘ
surface form:
State of São Paulo
|
| majorCityOnRiver |
Barra Bonita
ⓘ
Mogi das Cruzes ⓘ São Paulo ⓘ
surface form:
São Paulo (city)
|
| mouthLocation |
Border of São Paulo and Mato Grosso do Sul
ⓘ
Itapura ⓘ |
| mouthOf | Paraná River ⓘ |
| partOf |
Paraná River
ⓘ
surface form:
Paraná River basin
|
| passesNear |
Guarulhos
ⓘ
Osasco ⓘ Santana de Parnaíba ⓘ |
| sourceLocation |
Salesópolis
ⓘ
Serra do Mar system ⓘ
surface form:
Serra do Mar
|
| subjectOf | Tietê River clean-up programs ⓘ |
| usedFor |
fishing
ⓘ
hydroelectric power generation ⓘ inland navigation ⓘ irrigation ⓘ recreation ⓘ |
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: Tietê River Description of subject: The Tietê River is a significant waterway in southeastern Brazil that flows across the state of São Paulo and plays a key role in the region’s ecology, economy, and urban landscape.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Tietê River Basin
this entity surface form:
Tietê River basin
subject surface form:
Barueri
this entity surface form:
Tietê River basin