Rímac River
E20286
The Rímac River is a major waterway in central Peru that flows from the Andes through the city of Lima to the Pacific Ocean, serving as a crucial source of water for the capital region.
All labels observed (7)
| Label | Occurrences |
|---|---|
| Rímac River canonical | 14 |
| Lima metropolitan water system | 1 |
| Rímac River (nearby) | 1 |
| Rímac River basin | 1 |
| Rímac River valley | 1 |
| Rímac Valley | 1 |
| Río Rímac | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T128815 — 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: Rímac River Context triple: [Lima, primaryRiver, Rímac River]
-
A.
Guayas River
The Guayas River is a major waterway in western Ecuador that flows through the coastal lowlands and the city of Guayaquil before emptying into the Pacific Ocean.
-
B.
Limarí River
The Limarí River is a significant watercourse in north-central Chile that supports agriculture and viticulture as it flows through the semi-arid Coquimbo Region to the Pacific Ocean.
-
C.
Río Negro
Río Negro is a major river in Argentine Patagonia known for irrigating fertile valleys and supporting agriculture and settlements across the region.
-
D.
Choapa River
The Choapa River is a significant watercourse in north-central Chile that flows through the Coquimbo Region toward the Pacific Ocean, supporting local agriculture and settlements along its basin.
-
E.
Croton River
The Croton River is a river in southeastern New York that flows through Westchester and Putnam counties and is a key source for New York City's Croton water supply system.
- 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: Rímac River Target entity description: The Rímac River is a major waterway in central Peru that flows from the Andes through the city of Lima to the Pacific Ocean, serving as a crucial source of water for the capital region.
-
A.
Guayas River
The Guayas River is a major waterway in western Ecuador that flows through the coastal lowlands and the city of Guayaquil before emptying into the Pacific Ocean.
-
B.
Limarí River
The Limarí River is a significant watercourse in north-central Chile that supports agriculture and viticulture as it flows through the semi-arid Coquimbo Region to the Pacific Ocean.
-
C.
Río Negro
Río Negro is a major river in Argentine Patagonia known for irrigating fertile valleys and supporting agriculture and settlements across the region.
-
D.
Choapa River
The Choapa River is a significant watercourse in north-central Chile that flows through the Coquimbo Region toward the Pacific Ocean, supporting local agriculture and settlements along its basin.
-
E.
Croton River
The Croton River is a river in southeastern New York that flows through Westchester and Putnam counties and is a key source for New York City's Croton water supply system.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf | river ⓘ |
| alsoKnownAs |
Rímac River
ⓘ
surface form:
Río Rímac
|
| associatedWith |
Lima water supply system
ⓘ
hydroelectric power generation in central Peru ⓘ |
| basinLocatedIn |
Huarochirí Province
ⓘ
Lima Region ⓘ |
| country | Peru ⓘ |
| crosses |
Andean highlands
ⓘ
Central Coast of Peru ⓘ
surface form:
Lima coastal plain
|
| drainageBasinCountry | Peru ⓘ |
| flowsDirection | east-to-west ⓘ |
| flowsInto | Pacific Ocean ⓘ |
| flowsThrough | Lima ⓘ |
| hasCityAtMouth | Callao ⓘ |
| hasEnvironmentalIssue |
industrial contamination
ⓘ
urban wastewater discharge ⓘ water pollution ⓘ |
| hasHistoricalSignificance |
central to the development of the city of Lima
ⓘ
supported pre-Hispanic settlements in the Lima area ⓘ |
| hasNameEtymology |
Quechua
ⓘ
surface form:
Quechua language
|
| hasWatershed |
Rímac River
self-linksurface differs
ⓘ
surface form:
Rímac River basin
|
| importance |
key river for water supply, agriculture, and industry in Lima
ⓘ
primary surface water source for Lima ⓘ |
| isMainRiverOf |
Lima Region
ⓘ
Rímac River self-linksurface differs ⓘ
surface form:
Lima metropolitan water system
|
| languageOfName | Spanish ⓘ |
| locatedIn |
Lima Province
ⓘ
Lima Region ⓘ Rímac River self-linksurface differs ⓘ
surface form:
Rímac Valley
central Peru ⓘ |
| majorCityOnRiver | Lima ⓘ |
| mouth | Pacific Ocean ⓘ |
| near |
Callao
ⓘ
surface form:
Port of Callao
|
| partOf | Pacific slope river systems of Peru ⓘ |
| passesThrough |
Lima
ⓘ
surface form:
Lima Metropolitan Area
|
| region |
coastal Peru
ⓘ
western Peru ⓘ |
| role |
crucial source of water for Lima
ⓘ
crucial source of water for the capital region of Peru ⓘ major waterway in central Peru ⓘ |
| sourceRegion |
Andes
ⓘ
Andean region ⓘ
surface form:
Central Andes
|
| terminatesAt | Pacific Ocean ⓘ |
| usedFor |
drinking water supply
ⓘ
hydroelectric power ⓘ irrigation ⓘ recreation ⓘ |
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: Rímac River Description of subject: The Rímac River is a major waterway in central Peru that flows from the Andes through the city of Lima to the Pacific Ocean, serving as a crucial source of water for the capital region.
Referenced by (20)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Rímac Valley
this entity surface form:
Río Rímac
this entity surface form:
Rímac River basin
this entity surface form:
Lima metropolitan water system
this entity surface form:
Rímac River valley
subject surface form:
Palacio de Gobierno del Perú
this entity surface form:
Rímac River (nearby)