São Marcos River
E602821
The São Marcos River is a watercourse in central Brazil that serves as a significant tributary within the Paraná River basin, contributing to regional agriculture and hydroelectric generation.
All labels observed (1)
| Label | Occurrences |
|---|---|
| São Marcos River canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6038050 — 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: São Marcos River Context triple: [Paranaíba River, hasTributary, São Marcos River]
-
A.
Louros River
The Louros River is a significant waterway in northwestern Greece, known for its clear springs, scenic course through Epirus, and ecological importance as a habitat for diverse flora and fauna.
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B.
Bensafrim River
The Bensafrim River is a watercourse in the Algarve region of southern Portugal that flows past the historic city of Lagos before reaching the Atlantic Ocean.
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C.
Madeira River
The Madeira River is one of the largest and most significant rivers in South America, flowing through Bolivia and Brazil and playing a key role in the Amazon Basin’s ecology, transport, and hydroelectric power generation.
-
D.
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.
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E.
Sousa River
The Sousa River is a significant river in northern Portugal that feeds into the Douro River and contributes to its drainage basin.
- 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: São Marcos River Target entity description: The São Marcos River is a watercourse in central Brazil that serves as a significant tributary within the Paraná River basin, contributing to regional agriculture and hydroelectric generation.
-
A.
Louros River
The Louros River is a significant waterway in northwestern Greece, known for its clear springs, scenic course through Epirus, and ecological importance as a habitat for diverse flora and fauna.
-
B.
Bensafrim River
The Bensafrim River is a watercourse in the Algarve region of southern Portugal that flows past the historic city of Lagos before reaching the Atlantic Ocean.
-
C.
Madeira River
The Madeira River is one of the largest and most significant rivers in South America, flowing through Bolivia and Brazil and playing a key role in the Amazon Basin’s ecology, transport, and hydroelectric power generation.
-
D.
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.
-
E.
Sousa River
The Sousa River is a significant river in northern Portugal that feeds into the Douro River and contributes to its drainage basin.
- F. None of above. chosen
Statements (10)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| continent | South America ⓘ |
| country | Brazil ⓘ |
| hasBasinCountry | Brazil NERFINISHED ⓘ |
| hasMouthBasin | Paraná River basin NERFINISHED ⓘ |
| locatedIn | Central Brazil NERFINISHED ⓘ |
| partOf | Paraná River basin NERFINISHED ⓘ |
| tributaryOf | Paraná River basin NERFINISHED ⓘ |
| usedFor |
agricultural irrigation
ⓘ
hydroelectric power generation ⓘ |
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: São Marcos River Description of subject: The São Marcos River is a watercourse in central Brazil that serves as a significant tributary within the Paraná River basin, contributing to regional agriculture and hydroelectric generation.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.