Piranhas River
E569728
The Piranhas River is a major watercourse in northeastern Brazil that flows through semi-arid regions, supporting local agriculture and communities along its banks.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Piranhas River canonical | 1 |
| Piranhas-Açu River | 1 |
| Piranhas–Açu River basin | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5981736 — 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: Piranhas River Context triple: [Sousa, river, Piranhas River]
-
A.
Úpa River
The Úpa River is a river in the northeastern Czech Republic that flows from the Krkonoše (Giant) Mountains through towns such as Trutnov before joining the Labe (Elbe) River.
-
B.
Kagini River
Kagini River is a tributary watercourse in India that feeds into the larger Bhima River system.
-
C.
Agout River
The Agout River is a significant waterway in southern France that flows through the Tarn and Hérault departments, supporting local ecosystems, agriculture, and towns along its course.
-
D.
Putumayo River
The Putumayo River is a major tributary of the Amazon that flows through Colombia, Peru, Ecuador, and Brazil, serving as an important natural border and transportation route in the western Amazon basin.
-
E.
Apies River
The Apies River is a South African river that flows through the Pretoria area before joining the Crocodile River in the Limpopo River 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: Piranhas River Target entity description: The Piranhas River is a major watercourse in northeastern Brazil that flows through semi-arid regions, supporting local agriculture and communities along its banks.
-
A.
Úpa River
The Úpa River is a river in the northeastern Czech Republic that flows from the Krkonoše (Giant) Mountains through towns such as Trutnov before joining the Labe (Elbe) River.
-
B.
Kagini River
Kagini River is a tributary watercourse in India that feeds into the larger Bhima River system.
-
C.
Agout River
The Agout River is a significant waterway in southern France that flows through the Tarn and Hérault departments, supporting local ecosystems, agriculture, and towns along its course.
-
D.
Putumayo River
The Putumayo River is a major tributary of the Amazon that flows through Colombia, Peru, Ecuador, and Brazil, serving as an important natural border and transportation route in the western Amazon basin.
-
E.
Apies River
The Apies River is a South African river that flows through the Pretoria area before joining the Crocodile River in the Limpopo River basin.
- F. None of above. chosen
Statements (11)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| country | Brazil ⓘ |
| flowsThroughRegion | semi-arid region of Brazil ⓘ |
| hasUse |
fishing
ⓘ
irrigation ⓘ water supply ⓘ |
| locatedIn |
Northeastern Brazil
ⓘ
linked to:
Northeast Region of Brazil
|
| locatedOnContinent | South America ⓘ |
| partOf | Brazilian river system ⓘ |
| supports |
local agriculture
ⓘ
local communities ⓘ |
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: Piranhas River Description of subject: The Piranhas River is a major watercourse in northeastern Brazil that flows through semi-arid regions, supporting local agriculture and communities along its banks.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Piranhas River
linked to: Piranhas River