Rio Tietê
E551463
Rio Tietê is a major river in the Brazilian state of São Paulo, historically important for inland navigation and urban development but now heavily impacted by pollution along its course through the metropolitan region.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Rio Tietê canonical | 1 |
| Tietê–Paraná river system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5517843 — 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: Rio Tietê Context triple: [Tietê River, alsoKnownAs, Rio Tietê]
-
A.
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.
-
B.
Guaporé River
The Guaporé River is a major South American waterway forming part of the Brazil–Bolivia border and contributing significantly to the Amazon Basin’s drainage system.
-
C.
Paraná
Paraná is a state in southern Brazil known for its diverse landscapes, including the Iguaçu Falls on the border with Argentina and Paraguay, and its strong agricultural and industrial economy.
-
D.
Paraná
Paraná is the capital city of Argentina's Entre Ríos Province, located on the eastern bank of the Paraná River and serving as an important political, cultural, and economic center in the Mesopotamia region.
-
E.
Ipiranga River
The Ipiranga River is a historically significant waterway in São Paulo, Brazil, best known as the site where Dom Pedro I proclaimed Brazil’s independence in 1822.
- 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: Rio Tietê Target entity description: Rio Tietê is a major river in the Brazilian state of São Paulo, historically important for inland navigation and urban development but now heavily impacted by pollution along its course through the metropolitan region.
-
A.
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.
-
B.
Guaporé River
The Guaporé River is a major South American waterway forming part of the Brazil–Bolivia border and contributing significantly to the Amazon Basin’s drainage system.
-
C.
Paraná
Paraná is a state in southern Brazil known for its diverse landscapes, including the Iguaçu Falls on the border with Argentina and Paraguay, and its strong agricultural and industrial economy.
-
D.
Paraná
Paraná is the capital city of Argentina's Entre Ríos Province, located on the eastern bank of the Paraná River and serving as an important political, cultural, and economic center in the Mesopotamia region.
-
E.
Ipiranga River
The Ipiranga River is a historically significant waterway in São Paulo, Brazil, best known as the site where Dom Pedro I proclaimed Brazil’s independence in 1822.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
geographical feature
ⓘ
river ⓘ |
| associatedWith |
channelization and river straightening works
ⓘ
urban flooding problems in São Paulo ⓘ |
| basinCountry | Brazil NERFINISHED ⓘ |
| continent | South America ⓘ |
| country | Brazil ⓘ |
| crossedBy | Marginal Tietê expressway NERFINISHED ⓘ |
| environmentalIssue |
domestic sewage contamination
ⓘ
industrial pollution ⓘ solid waste accumulation ⓘ water pollution ⓘ |
| environmentalStatus | heavily polluted in the São Paulo metropolitan stretch ⓘ |
| flowsThrough |
Barra Bonita
NERFINISHED
ⓘ
City of São Paulo NERFINISHED ⓘ Laranjal Paulista NERFINISHED ⓘ Mogi das Cruzes NERFINISHED ⓘ Piracicaba region ⓘ São Paulo metropolitan region NERFINISHED ⓘ Tietê NERFINISHED ⓘ |
| hasBasin | Tietê River basin ⓘ |
| hasConfluenceWith | Paranapanema River basin (downstream via Paraná River system) NERFINISHED ⓘ |
| hasDam |
Bariri Dam
NERFINISHED
ⓘ
Barra Bonita Dam NERFINISHED ⓘ Ibitinga Dam NERFINISHED ⓘ Nova Avanhandava Dam NERFINISHED ⓘ Promissão Dam NERFINISHED ⓘ Três Irmãos Dam NERFINISHED ⓘ |
| historicalUse |
inland navigation
ⓘ
support for bandeirantes expeditions ⓘ trade route to the interior of Brazil ⓘ |
| importance |
key factor in urban development of São Paulo
ⓘ
major river of São Paulo state ⓘ |
| languageOfName | Portuguese NERFINISHED ⓘ |
| locatedIn |
Southeast Region of Brazil
NERFINISHED
ⓘ
State of São Paulo NERFINISHED ⓘ |
| mouthLocation | Paraná River NERFINISHED ⓘ |
| nameMeaning | derived from Tupi language ⓘ |
| partOf | Paraná River basin NERFINISHED ⓘ |
| passesNear | São Paulo city center NERFINISHED ⓘ |
| sourceLocation |
Salesópolis
NERFINISHED
ⓘ
Serra do Mar NERFINISHED ⓘ |
| subjectOf |
Tietê River depollution programs
ⓘ
environmental restoration projects by the State of São Paulo ⓘ |
| tributaryOf | Paraná River NERFINISHED ⓘ |
| usedFor |
hydroelectric power generation
ⓘ
inland navigation in some stretches ⓘ recreation in cleaner upstream and downstream areas ⓘ |
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: Rio Tietê Description of subject: Rio Tietê is a major river in the Brazilian state of São Paulo, historically important for inland navigation and urban development but now heavily impacted by pollution along its course through the metropolitan region.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Tietê–Paraná river system