Pastaza River
E390027
The Pastaza River is a major tributary of the Amazon River system in South America, flowing from the Ecuadorian Andes into Peru through diverse rainforest and canyon landscapes.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Pastaza River canonical | 9 |
How this entity was disambiguated
This entity first appeared as the object of triple T2249226 — 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: Pastaza River Context triple: [Pastaza Province, namedAfter, Pastaza River]
-
A.
Curaray River
The Curaray River is a remote waterway in the Amazon Basin of Ecuador and Peru, known for its dense rainforest surroundings and historical significance in missionary and indigenous encounters.
-
B.
Actopan River
The Actopan River is a freshwater river in the Mexican state of Veracruz known for its clear waters, scenic canyons, and popularity for rafting and ecotourism.
-
C.
Atrato River
The Atrato River is a major waterway in northwestern Colombia, known for its high rainfall basin, rich biodiversity, and importance as a transport route through remote rainforest regions.
-
D.
Diguillín River
The Diguillín River is a watercourse in south-central Chile that flows through the Ñuble Region, supporting local agriculture and ecosystems before joining larger river systems.
-
E.
Huancané River
The Huancané River is a river in the Andean region of Peru that serves as one of the tributaries feeding Lake Titicaca.
- 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: Pastaza River Target entity description: The Pastaza River is a major tributary of the Amazon River system in South America, flowing from the Ecuadorian Andes into Peru through diverse rainforest and canyon landscapes.
-
A.
Curaray River
The Curaray River is a remote waterway in the Amazon Basin of Ecuador and Peru, known for its dense rainforest surroundings and historical significance in missionary and indigenous encounters.
-
B.
Actopan River
The Actopan River is a freshwater river in the Mexican state of Veracruz known for its clear waters, scenic canyons, and popularity for rafting and ecotourism.
-
C.
Atrato River
The Atrato River is a major waterway in northwestern Colombia, known for its high rainfall basin, rich biodiversity, and importance as a transport route through remote rainforest regions.
-
D.
Diguillín River
The Diguillín River is a watercourse in south-central Chile that flows through the Ñuble Region, supporting local agriculture and ecosystems before joining larger river systems.
-
E.
Huancané River
The Huancané River is a river in the Andean region of Peru that serves as one of the tributaries feeding Lake Titicaca.
- F. None of above. chosen
Statements (33)
| Predicate | Object |
|---|---|
| instanceOf |
river
ⓘ
tributary ⓘ |
| borderRole | forms part of the Ecuador–Peru frontier region ⓘ |
| continent | South America ⓘ |
| country |
Ecuador
ⓘ
Peru ⓘ |
| drainageBasin |
Northern Andes in Ecuador
ⓘ
surface form:
eastern Andes of Ecuador
Northwestern Amazonia ⓘ
surface form:
northwestern Amazon Basin
|
| flowsThrough |
Amazon rainforest
ⓘ
Andes ⓘ
surface form:
Andes Mountains
Loreto Region of Peru ⓘ
surface form:
Loreto Region
Morona-Santiago Province NERFINISHED ⓘ Pastaza Province NERFINISHED ⓘ |
| hasEcologicalSignificance |
connects Andean and Amazonian ecosystems
ⓘ
provides habitat for aquatic species ⓘ supports Amazonian biodiversity ⓘ |
| hasHydrologicalFeature |
braided channels
ⓘ
meanders ⓘ rapids ⓘ |
| hasLandscape |
canyons
ⓘ
floodplains ⓘ rainforest ⓘ |
| inhabitedBy | indigenous communities ⓘ |
| languageOrigin | Quechua toponymy (Pastaza region) ⓘ |
| locatedIn | upper Amazon region ⓘ |
| mouthCountry | Peru ⓘ |
| mouthLocation | Marañón River ⓘ |
| partOf |
Amazon Basin
ⓘ
surface form:
Amazon River basin
|
| sourceLocation | Ecuadorian Andes ⓘ |
| tributaryOf | Marañón River ⓘ |
| usedFor |
fishing
ⓘ
river transport ⓘ subsistence activities ⓘ |
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: Pastaza River Description of subject: The Pastaza River is a major tributary of the Amazon River system in South America, flowing from the Ecuadorian Andes into Peru through diverse rainforest and canyon landscapes.
Referenced by (9)
Full triples — surface form annotated when it differs from this entity's canonical label.