Nepeña River drainage
E1047948
The Nepeña River drainage is a watershed region in coastal Ancash, Peru, encompassing the Nepeña River and its surrounding valleys, archaeological sites, and agricultural lands.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Nepeña River drainage canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13539424 — 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: Nepeña River drainage Context triple: [Cerro Blanco (Nepeña Valley), locatedIn, Nepeña River drainage]
-
A.
Acelhuate River basin
The Acelhuate River basin is a watershed in central El Salvador that drains much of the San Salvador metropolitan area and is known for severe urban pollution and flood risk.
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B.
Guavio River basin
The Guavio River basin is a watershed in central Colombia that drains the eastern Andean slopes and supports regional ecosystems, agriculture, and hydroelectric generation.
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C.
Arzobispo River basin
The Arzobispo River basin is a watershed in Bogotá that drains part of the city’s Eastern Hills and contributes to its urban hydrological system.
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D.
La Paz River basin
The La Paz River basin is a watershed in western Bolivia that drains the city of La Paz and surrounding Andean highlands through a network of rivers and tributaries.
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E.
Renaico River
The Renaico River is a Chilean watercourse in south-central Chile that serves as one of the tributaries feeding into the larger Biobío 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: Nepeña River drainage Target entity description: The Nepeña River drainage is a watershed region in coastal Ancash, Peru, encompassing the Nepeña River and its surrounding valleys, archaeological sites, and agricultural lands.
-
A.
Acelhuate River basin
The Acelhuate River basin is a watershed in central El Salvador that drains much of the San Salvador metropolitan area and is known for severe urban pollution and flood risk.
-
B.
Guavio River basin
The Guavio River basin is a watershed in central Colombia that drains the eastern Andean slopes and supports regional ecosystems, agriculture, and hydroelectric generation.
-
C.
Arzobispo River basin
The Arzobispo River basin is a watershed in Bogotá that drains part of the city’s Eastern Hills and contributes to its urban hydrological system.
-
D.
La Paz River basin
The La Paz River basin is a watershed in western Bolivia that drains the city of La Paz and surrounding Andean highlands through a network of rivers and tributaries.
-
E.
Renaico River
The Renaico River is a Chilean watercourse in south-central Chile that serves as one of the tributaries feeding into the larger Biobío River basin.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf |
drainage basin
ⓘ
geographical region ⓘ watershed ⓘ |
| contains |
Nepeña River
ⓘ
Nepeña Valley ⓘ agricultural land ⓘ archaeological sites ⓘ |
| country | Peru ⓘ |
| drainsInto | Pacific Ocean ⓘ |
| ecosystemType |
arid coastal valley
ⓘ
riparian corridor ⓘ |
| hasCulturalSignificance |
archaeological research area
ⓘ
pre-Hispanic occupation ⓘ |
| hasFeature |
alluvial plains
ⓘ
pre-Columbian archaeological sites ⓘ river valley ⓘ |
| hasLandUse |
irrigated agriculture
ⓘ
rural settlements ⓘ |
| hydrologicalSystem | Nepeña River ⓘ |
| locatedIn |
Ancash Region
ⓘ
Peru ⓘ coastal Ancash ⓘ |
| partOf | Peruvian coastal watersheds ⓘ |
| regionType | coastal watershed ⓘ |
| usedFor |
agricultural production
ⓘ
water supply for irrigation ⓘ |
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: Nepeña River drainage Description of subject: The Nepeña River drainage is a watershed region in coastal Ancash, Peru, encompassing the Nepeña River and its surrounding valleys, archaeological sites, and agricultural lands.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.