Macacu River
E322446
The Macacu River is a watercourse in the state of Rio de Janeiro, Brazil, that flows through the coastal lowlands before emptying into Guanabara Bay.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Macacu River canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1816476 — 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: Macacu River Context triple: [Guanabara Bay, hasRiverMouth, Macacu River]
-
A.
Clarillo River
The Clarillo River is a significant watercourse in central Chile that feeds into the Maipo River and supports surrounding ecosystems and agriculture.
-
B.
Binwa River
Binwa River is a Himalayan river in northern India that flows through Himachal Pradesh as a significant tributary contributing to the Beas River system.
-
C.
Banjar River
The Banjar River is a significant tributary in central India that feeds into the Narmada River system.
-
D.
Sonai River
The Sonai River is a tributary waterway in northeastern India that feeds into the larger Barak River system.
-
E.
Nanay River
The Nanay River is a tributary of the Amazon River in northern Peru, flowing through the Loreto Region and alongside the city of Iquitos.
- 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: Macacu River Target entity description: The Macacu River is a watercourse in the state of Rio de Janeiro, Brazil, that flows through the coastal lowlands before emptying into Guanabara Bay.
-
A.
Clarillo River
The Clarillo River is a significant watercourse in central Chile that feeds into the Maipo River and supports surrounding ecosystems and agriculture.
-
B.
Binwa River
Binwa River is a Himalayan river in northern India that flows through Himachal Pradesh as a significant tributary contributing to the Beas River system.
-
C.
Banjar River
The Banjar River is a significant tributary in central India that feeds into the Narmada River system.
-
D.
Sonai River
The Sonai River is a tributary waterway in northeastern India that feeds into the larger Barak River system.
-
E.
Nanay River
The Nanay River is a tributary of the Amazon River in northern Peru, flowing through the Loreto Region and alongside the city of Iquitos.
- F. None of above. chosen
Statements (20)
| Predicate | Object |
|---|---|
| instanceOf |
river
ⓘ
watercourse ⓘ |
| basinCountry | Brazil ⓘ |
| continent | South America ⓘ |
| country | Brazil ⓘ |
| countrySubdivision |
State of Rio de Janeiro
ⓘ
surface form:
State of Rio de Janeiro, Brazil
|
| drainageBasin | Atlantic slope of Serra do Mar (Rio de Janeiro) ⓘ |
| emptiesInto | Atlantic Ocean via Guanabara Bay ⓘ |
| flowsInto | Guanabara Bay ⓘ |
| hasEstuary |
Guanabara Bay
ⓘ
surface form:
Guanabara Bay estuarine system
|
| hasNameInLanguage | Rio Macacu (Portuguese) ⓘ |
| hydrologicalFeatureType | coastal river ⓘ |
| languageOfName | Portuguese ⓘ |
| locatedIn |
State of Rio de Janeiro
ⓘ
surface form:
Rio de Janeiro (state)
Southeast Region of Brazil ⓘ
surface form:
Southeast Region, Brazil
coastal lowlands of Rio de Janeiro ⓘ |
| mouth | Guanabara Bay ⓘ |
| partOf |
Guanabara Bay
ⓘ
surface form:
Guanabara Bay watershed
|
| region | eastern Rio de Janeiro (state) ⓘ |
| riverSystem |
Guanabara Bay
ⓘ
surface form:
Guanabara Bay basin
|
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: Macacu River Description of subject: The Macacu River is a watercourse in the state of Rio de Janeiro, Brazil, that flows through the coastal lowlands before emptying into Guanabara Bay.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.