Bratsk Reservoir
E1026820
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Bratsk Reservoir canonical | 8 |
How this entity was disambiguated
This entity first appeared as the object of triple T13013735 — 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: Bratsk Reservoir Context triple: [Angara River, formsReservoir, Bratsk Reservoir]
-
A.
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.
-
B.
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.
-
C.
Tsimlyansk Reservoir
Tsimlyansk Reservoir is a large artificial lake on the Don River in southwestern Russia, created for hydroelectric power, irrigation, and navigation.
-
D.
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.
-
E.
Rybinsk Reservoir
Rybinsk Reservoir is a large artificial lake in Russia, created by damming the Volga and several tributaries, and is one of the country’s largest and historically most significant reservoirs.
- 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: Bratsk Reservoir Target entity description: 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.
-
A.
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.
-
B.
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.
-
C.
Tsimlyansk Reservoir
Tsimlyansk Reservoir is a large artificial lake on the Don River in southwestern Russia, created for hydroelectric power, irrigation, and navigation.
-
D.
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.
-
E.
Rybinsk Reservoir
Rybinsk Reservoir is a large artificial lake in Russia, created by damming the Volga and several tributaries, and is one of the country’s largest and historically most significant reservoirs.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
artificial lake
ⓘ
hydroelectric reservoir ⓘ reservoir ⓘ |
| basinCountry | Russia ⓘ |
| belongsTo | hydropower system of the Angara River ⓘ |
| climate | continental climate ⓘ |
| completionDate | 1960s ⓘ |
| constructionStartDate | 1950s ⓘ |
| continent | Asia ⓘ |
| country | Russia ⓘ |
| countryCapitalDistance | far from Moscow (approximate) ⓘ |
| countrySubdivision | Irkutsk Oblast ⓘ |
| createdBy | Bratsk Dam ⓘ |
| formedBy | impoundment of the Angara River ⓘ |
| freezesDuring | winter ⓘ |
| hasLanguageRegion | Russian language ⓘ |
| hasMaximumDepth | over 100 meters (approximate) ⓘ |
| hasShoreLength | thousands of kilometers (approximate) ⓘ |
| hasSurfaceArea | thousands of square kilometers (approximate) ⓘ |
| hasVolume | tens of cubic kilometers (approximate) ⓘ |
| impact |
flooding of large forested areas
ⓘ
relocation of local settlements ⓘ |
| inflow | Angara River ⓘ |
| knownFor | being one of the world’s largest reservoirs by volume ⓘ |
| locatedIn |
Irkutsk Oblast
ⓘ
Russian Far East Federal District ⓘ
linked to:
Far Eastern Federal District
Siberia ⓘ |
| locatedInTimeZone | Irkutsk Time ⓘ |
| locatedNear |
Bratsk
ⓘ
Ust-Ilimsk ⓘ |
| nearbyCity |
Bratsk
ⓘ
Ust-Ilimsk ⓘ |
| operator | Bratsk Hydroelectric Power Station ⓘ |
| outflow | Angara River ⓘ |
| partOf |
Angara River basin
ⓘ
Yenisei River basin ⓘ |
| purpose |
flood control
ⓘ
hydroelectric power generation ⓘ industrial water supply ⓘ navigation ⓘ |
| region | Eastern Siberia ⓘ |
| river | Angara River ⓘ |
| usedFor |
commercial fishing
ⓘ
recreation ⓘ transportation ⓘ |
| waterBodyType | freshwater lake ⓘ |
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: Bratsk Reservoir Description of subject: 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.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.