Bacajá River
E551420
The Bacajá River is a tributary waterway in northern Brazil that feeds into the Xingu River within the Amazon Basin.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Bacajá River canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5095593 — 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: Bacajá River Context triple: [Xingu River, hasTributary, Bacajá River]
-
A.
Beberibe River
The Beberibe River is a waterway in northeastern Brazil that flows through the city of Recife, contributing to its estuarine landscape and urban geography.
-
B.
Sombreiro River
The Sombreiro River is a significant waterway in southern Nigeria that flows through the Niger Delta region, supporting local transportation, fishing, and agriculture.
-
C.
Guapimirim River
The Guapimirim River is a Brazilian river in the state of Rio de Janeiro that flows through the Guapimirim Environmental Protection Area before emptying into Guanabara Bay.
-
D.
Caceribu River
The Caceribu River is a watercourse in the state of Rio de Janeiro, Brazil, that flows into Guanabara Bay.
-
E.
Taquari River
The Taquari River is a significant waterway in central-western Brazil that flows through the Pantanal wetlands before joining the Paraguay River.
- 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: Bacajá River Target entity description: The Bacajá River is a tributary waterway in northern Brazil that feeds into the Xingu River within the Amazon Basin.
-
A.
Beberibe River
The Beberibe River is a waterway in northeastern Brazil that flows through the city of Recife, contributing to its estuarine landscape and urban geography.
-
B.
Sombreiro River
The Sombreiro River is a significant waterway in southern Nigeria that flows through the Niger Delta region, supporting local transportation, fishing, and agriculture.
-
C.
Guapimirim River
The Guapimirim River is a Brazilian river in the state of Rio de Janeiro that flows through the Guapimirim Environmental Protection Area before emptying into Guanabara Bay.
-
D.
Caceribu River
The Caceribu River is a watercourse in the state of Rio de Janeiro, Brazil, that flows into Guanabara Bay.
-
E.
Taquari River
The Taquari River is a significant waterway in central-western Brazil that flows through the Pantanal wetlands before joining the Paraguay River.
- F. None of above. chosen
Statements (15)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| basinCountry | Brazil ⓘ |
| continent | South America ⓘ |
| country | Brazil ⓘ |
| flowsThrough | Pará ⓘ |
| locatedIn |
Amazon Basin
ⓘ
Pará ⓘ northern Brazil ⓘ
linked to:
North Region of Brazil
|
| mouthLocatedIn | Xingu River ⓘ |
| partOf |
Amazon River system
ⓘ
linked to:
Amazon Basin
Xingu River basin ⓘ |
| riverSystem |
Amazon River basin
ⓘ
linked to:
Amazon Basin
Xingu River system ⓘ |
| tributaryOf | Xingu River ⓘ |
| watercourseType | tributary river ⓘ |
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: Bacajá River Description of subject: The Bacajá River is a tributary waterway in northern Brazil that feeds into the Xingu River within the Amazon Basin.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.