Rio Branco
E1014254
Rio Branco is a major river in northern Brazil that flows through the state of Roraima and ultimately joins the Rio Negro in the Amazon basin.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Rio Branco canonical | 2 |
| Rio Branco (Rondônia) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T12444194 — 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 Branco Context triple: [Negro River basin, hasTributaryRiver, Rio Branco]
-
A.
Rio Branco
Rio Branco is the capital city of the Brazilian state of Acre, located in the western Amazon region.
-
B.
Ji-Paraná
Ji-Paraná is a major municipality and economic center located in the Brazilian state of Rondônia in the western Amazon region.
-
C.
Kungur
Kungur is a historic Russian town in Perm Krai known for its ice cave, traditional trade heritage, and role as a regional cultural center.
-
D.
Corumbá
Corumbá is a Brazilian city in the state of Mato Grosso do Sul, known as a key gateway to the Pantanal wetlands and an important regional center for river trade and ecotourism.
-
E.
Conceição
Conceição is a civil parish located on Faial Island in the Azores archipelago of Portugal.
- 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 Branco Target entity description: Rio Branco is a major river in northern Brazil that flows through the state of Roraima and ultimately joins the Rio Negro in the Amazon basin.
-
A.
Rio Branco
Rio Branco is the capital city of the Brazilian state of Acre, located in the western Amazon region.
-
B.
Ji-Paraná
Ji-Paraná is a major municipality and economic center located in the Brazilian state of Rondônia in the western Amazon region.
-
C.
Kungur
Kungur is a historic Russian town in Perm Krai known for its ice cave, traditional trade heritage, and role as a regional cultural center.
-
D.
Corumbá
Corumbá is a Brazilian city in the state of Mato Grosso do Sul, known as a key gateway to the Pantanal wetlands and an important regional center for river trade and ecotourism.
-
E.
Conceição
Conceição is a civil parish located on Faial Island in the Azores archipelago of Portugal.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| basinCountry | Brazil ⓘ |
| continent | South America ⓘ |
| country | Brazil ⓘ |
| drainageBasin |
Amazon basin
ⓘ
linked to:
Amazon Basin
|
| flowsDirection | generally southward to Rio Negro ⓘ |
| flowsThrough | state of Roraima ⓘ |
| hasConfluenceNear | Rio Negro in the Amazon basin ⓘ |
| hasEcologicalSignificance | part of Amazon rainforest hydrological network ⓘ |
| hasEconomicUse |
local fishing resource
ⓘ
regional transportation waterway ⓘ |
| hasHydrologicalRole | major tributary of Rio Negro ⓘ |
| locatedIn |
Brazilian Amazon
ⓘ
linked to:
Amazon rainforest
Roraima state territory ⓘ
linked to:
Roraima state
northern Brazil ⓘ
linked to:
North Region of Brazil
state of Roraima ⓘ |
| mouthCountry | Brazil ⓘ |
| mouthRiver | Rio Negro ⓘ |
| partOf |
Amazon River system
ⓘ
linked to:
Amazon River
Amazon basin ⓘ
linked to:
Amazon Basin
|
| region | North Region of Brazil ⓘ |
| riverSystem |
Rio Negro basin
ⓘ
linked to:
Negro River basin
|
| sourceCountry | Brazil ⓘ |
| tributaryOf | Rio Negro ⓘ |
| waterBodyType | freshwater 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: Rio Branco Description of subject: Rio Branco is a major river in northern Brazil that flows through the state of Roraima and ultimately joins the Rio Negro in the Amazon basin.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Rio Branco