Ust-Ilimsk Reservoir
E1028160
Ust-Ilimsk Reservoir is a large artificial lake in Siberia created by the Ust-Ilimsk Dam as part of the Angara River’s hydroelectric power system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Ust-Ilimsk Reservoir canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13013736 — 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: Ust-Ilimsk Reservoir Context triple: [Angara River, formsReservoir, Ust-Ilimsk Reservoir]
-
A.
Irkutsk Reservoir
Irkutsk Reservoir is a large artificial lake in Siberia created by the Irkutsk Hydroelectric Power Station on the Angara River, serving as a key source of hydroelectric power and water regulation for the region.
-
B.
Krasnoyarsk Reservoir
The Krasnoyarsk Reservoir is a large artificial lake on the Yenisei River in Siberia, created by the Krasnoyarsk Dam and used for hydroelectric power generation, navigation, and regional water management.
-
C.
Novosibirsk Reservoir
Novosibirsk Reservoir is a large artificial lake in southwestern Siberia, Russia, created by damming the Ob River and serving as a major source of hydroelectric power, water supply, and recreation for the Novosibirsk region.
-
D.
Ust-Kamenogorsk Reservoir
Ust-Kamenogorsk Reservoir is a large artificial lake in eastern Kazakhstan created for hydroelectric power generation, water regulation, and industrial and municipal water supply.
-
E.
Bratsk Reservoir
Bratsk Reservoir is a massive artificial lake in Siberia, Russia, created by the Bratsk Dam and known as one of the world’s largest reservoirs by volume.
- 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: Ust-Ilimsk Reservoir Target entity description: Ust-Ilimsk Reservoir is a large artificial lake in Siberia created by the Ust-Ilimsk Dam as part of the Angara River’s hydroelectric power system.
-
A.
Irkutsk Reservoir
Irkutsk Reservoir is a large artificial lake in Siberia created by the Irkutsk Hydroelectric Power Station on the Angara River, serving as a key source of hydroelectric power and water regulation for the region.
-
B.
Krasnoyarsk Reservoir
The Krasnoyarsk Reservoir is a large artificial lake on the Yenisei River in Siberia, created by the Krasnoyarsk Dam and used for hydroelectric power generation, navigation, and regional water management.
-
C.
Novosibirsk Reservoir
Novosibirsk Reservoir is a large artificial lake in southwestern Siberia, Russia, created by damming the Ob River and serving as a major source of hydroelectric power, water supply, and recreation for the Novosibirsk region.
-
D.
Ust-Kamenogorsk Reservoir
Ust-Kamenogorsk Reservoir is a large artificial lake in eastern Kazakhstan created for hydroelectric power generation, water regulation, and industrial and municipal water supply.
-
E.
Bratsk Reservoir
Bratsk Reservoir is a massive artificial lake in Siberia, Russia, created by the Bratsk Dam and known as one of the world’s largest reservoirs by volume.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
artificial lake
ⓘ
hydroelectric reservoir ⓘ reservoir ⓘ |
| basinCountry | Russia ⓘ |
| constructionStartOfDam | 1960s ⓘ |
| continent | Asia ⓘ |
| country | Russia ⓘ |
| createdBy | Ust-Ilimsk Dam NERFINISHED ⓘ |
| downstreamFrom | Boguchany Reservoir NERFINISHED ⓘ |
| energySystem | Unified Energy System of Russia NERFINISHED ⓘ |
| floodedTypeOfArea |
river valley
ⓘ
taiga forest ⓘ |
| formedByDamCompletion | 1970s ⓘ |
| freezesInSeason | winter ⓘ |
| hasShorelineUse |
industrial facilities
ⓘ
settlements ⓘ |
| hasUse |
fishery
ⓘ
timber rafting support ⓘ |
| inflow | Angara River NERFINISHED ⓘ |
| languageOfToponym | Russian ⓘ |
| locatedIn |
Irkutsk Oblast
NERFINISHED
ⓘ
Siberia ⓘ |
| locatedInClimaticRegion | subarctic climate zone ⓘ |
| locatedNear | Ust-Ilimsk NERFINISHED ⓘ |
| locatedOn | Angara River NERFINISHED ⓘ |
| namedAfter |
Ust-Ilimsk Dam
NERFINISHED
ⓘ
Ust-Ilimsk town NERFINISHED ⓘ |
| operator | Ust-Ilimsk Hydroelectric Power Station NERFINISHED ⓘ |
| outflow | Angara River NERFINISHED ⓘ |
| partOf | Angara River hydroelectric power system NERFINISHED ⓘ |
| partOfCascadeWith |
Boguchany Reservoir
NERFINISHED
ⓘ
Bratsk Reservoir NERFINISHED ⓘ |
| purpose |
hydroelectric power generation
ⓘ
industrial water supply ⓘ navigation support ⓘ |
| region | Eastern Siberia NERFINISHED ⓘ |
| riverSystem | Yenisei River basin NERFINISHED ⓘ |
| tributaryOf | Yenisei River NERFINISHED ⓘ |
| upstreamFrom | Bratsk Reservoir NERFINISHED ⓘ |
| watercourse | Angara River NERFINISHED ⓘ |
| waterType | freshwater ⓘ |
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: Ust-Ilimsk Reservoir Description of subject: Ust-Ilimsk Reservoir is a large artificial lake in Siberia created by the Ust-Ilimsk Dam as part of the Angara River’s hydroelectric power system.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.