Koka Reservoir
E207668
Koka Reservoir is a major artificial lake in Ethiopia formed by the Koka Dam on the Awash River, serving as an important source of hydroelectric power, irrigation, and fisheries.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Koka Reservoir canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1788882 — 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: Koka Reservoir Context triple: [Awash River Basin, contains, Koka Reservoir]
-
A.
Almatti Reservoir
Almatti Reservoir is a major water body in Karnataka, India, formed on the Krishna River and used for irrigation, power generation, and regional water supply.
-
B.
Ruza Reservoir
Ruza Reservoir is a large artificial lake in the Moscow region of Russia, created by damming the Ruza River to serve as a key source of water supply and recreation.
-
C.
Tominé Reservoir
Tominé Reservoir is a large artificial lake in Colombia’s Cundinamarca department, known for supplying water to Bogotá and serving as a popular site for sailing and other water sports.
-
D.
Tantangara Reservoir
Tantangara Reservoir is a major water storage lake in New South Wales, Australia, forming part of the Snowy Mountains Scheme for hydroelectric power generation and irrigation.
-
E.
Amawalk Reservoir
Amawalk Reservoir is a man-made lake in Westchester County, New York, that forms part of 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: Koka Reservoir Target entity description: Koka Reservoir is a major artificial lake in Ethiopia formed by the Koka Dam on the Awash River, serving as an important source of hydroelectric power, irrigation, and fisheries.
-
A.
Almatti Reservoir
Almatti Reservoir is a major water body in Karnataka, India, formed on the Krishna River and used for irrigation, power generation, and regional water supply.
-
B.
Ruza Reservoir
Ruza Reservoir is a large artificial lake in the Moscow region of Russia, created by damming the Ruza River to serve as a key source of water supply and recreation.
-
C.
Tominé Reservoir
Tominé Reservoir is a large artificial lake in Colombia’s Cundinamarca department, known for supplying water to Bogotá and serving as a popular site for sailing and other water sports.
-
D.
Tantangara Reservoir
Tantangara Reservoir is a major water storage lake in New South Wales, Australia, forming part of the Snowy Mountains Scheme for hydroelectric power generation and irrigation.
-
E.
Amawalk Reservoir
Amawalk Reservoir is a man-made lake in Westchester County, New York, that forms part of New York City's Croton water supply system.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
artificial lake
ⓘ
reservoir ⓘ |
| affects | downstream irrigation schemes on Awash River ⓘ |
| basinCountry | Ethiopia ⓘ |
| continent | Africa ⓘ |
| country | Ethiopia ⓘ |
| createdBy | construction of Koka Dam ⓘ |
| formedBy | Koka Dam ⓘ |
| hasDam | Koka Dam ⓘ |
| hasEconomicActivity |
hydropower production
ⓘ
inland fisheries ⓘ irrigated agriculture ⓘ |
| locatedIn | Oromia Region ⓘ |
| locatedInProtectedArea |
Awash River Basin
ⓘ
surface form:
Awash River basin environmental management area
|
| locatedOnRiver | Awash River ⓘ |
| nearCity |
Adama
ⓘ
Mojo ⓘ |
| operator | Ethiopian Electric Power ⓘ |
| partOf |
Awash River Basin
ⓘ
surface form:
Awash River basin
|
| purpose |
fisheries development
ⓘ
flood control ⓘ irrigation water storage ⓘ power generation ⓘ |
| subjectOf |
studies on eutrophication
ⓘ
studies on fisheries in Ethiopian reservoirs ⓘ studies on water quality in Ethiopia ⓘ |
| use |
fisheries
ⓘ
hydroelectric power generation ⓘ irrigation ⓘ |
| waterBodyType | freshwater lake ⓘ |
| waterSource | Awash 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: Koka Reservoir Description of subject: Koka Reservoir is a major artificial lake in Ethiopia formed by the Koka Dam on the Awash River, serving as an important source of hydroelectric power, irrigation, and fisheries.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.