Rybinsk Reservoir
E53854
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.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Rybinsk Reservoir canonical | 20 |
| Rybinsk Dam | 1 |
| Rybinsk Reservoir on the Volga River | 1 |
| Rybinskoye Reservoir | 1 |
| Rybinskoye Vodokhranilishche | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T407088 — 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: Rybinsk Reservoir Context triple: [Volga River, majorReservoir, Rybinsk Reservoir]
-
A.
Ivankovo Reservoir
Ivankovo Reservoir is a large artificial lake in Russia that serves as the uppermost reservoir on the Volga River, playing a key role in water supply, navigation, and hydroelectric power generation for the Moscow region.
-
B.
Lake Ladoga
Lake Ladoga is a vast freshwater lake in northwestern Russia, renowned as the largest lake in Europe and an important ecological and historical region.
-
C.
Lake Velence
Lake Velence is one of Hungary’s largest natural lakes, known as a popular resort and recreation area in the Transdanubian region.
-
D.
Ligeia Mare
Ligeia Mare is one of the largest known hydrocarbon seas on Saturn’s moon Titan, composed primarily of liquid methane and ethane.
-
E.
Moika River
The Moika River is a small, historic waterway in central Saint Petersburg, Russia, lined with notable palaces and landmarks and forming part of the city’s iconic canal network.
- 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: Rybinsk Reservoir Target entity description: 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.
-
A.
Ivankovo Reservoir
Ivankovo Reservoir is a large artificial lake in Russia that serves as the uppermost reservoir on the Volga River, playing a key role in water supply, navigation, and hydroelectric power generation for the Moscow region.
-
B.
Lake Ladoga
Lake Ladoga is a vast freshwater lake in northwestern Russia, renowned as the largest lake in Europe and an important ecological and historical region.
-
C.
Lake Velence
Lake Velence is one of Hungary’s largest natural lakes, known as a popular resort and recreation area in the Transdanubian region.
-
D.
Ligeia Mare
Ligeia Mare is one of the largest known hydrocarbon seas on Saturn’s moon Titan, composed primarily of liquid methane and ethane.
-
E.
Moika River
The Moika River is a small, historic waterway in central Saint Petersburg, Russia, lined with notable palaces and landmarks and forming part of the city’s iconic canal network.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
artificial lake
ⓘ
reservoir ⓘ |
| alsoKnownAs |
Rybinskoye Reservoir
ⓘ
linked to:
Rybinsk Reservoir
Rybinskoye Vodokhranilishche ⓘ
linked to:
Rybinsk Reservoir
|
| averageDepth | approximately 5–6 metres ⓘ |
| basinCountry | Russia ⓘ |
| climateZone | humid continental climate ⓘ |
| completionDate | 1947 ⓘ |
| constructionStartDate | 1935 ⓘ |
| country | Russia ⓘ |
| createdBy | damming of the Volga and its tributaries ⓘ |
| fillingStartDate | 1941 ⓘ |
| formedBy |
Rybinsk Dam
ⓘ
linked to:
Rybinsk Reservoir
Rybinsk Hydroelectric Station ⓘ |
| freezingPeriod | typically freezes in winter ⓘ |
| hasShorelineCity |
Cherepovets
ⓘ
Myshkin ⓘ |
| historicalSignificance |
led to submergence of the town of Mologa
ⓘ
one of the first and largest reservoirs built in the Soviet Union ⓘ required resettlement of many villages ⓘ |
| inflow |
Mologa River
ⓘ
Sheksna River ⓘ Volga River ⓘ |
| locatedIn |
Tver Oblast
ⓘ
Vologda Oblast ⓘ Yaroslavl Oblast ⓘ |
| locatedInDrainageBasin |
Caspian Sea basin
ⓘ
linked to:
Caspian Sea region
|
| locatedInRegion | European Russia ⓘ |
| locatedOnRiver |
Mologa River
ⓘ
Sheksna River ⓘ Sogozha River ⓘ Volga River ⓘ |
| maximumDepth | approximately 30 metres ⓘ |
| namedAfter | Rybinsk ⓘ |
| nearestCity | Rybinsk ⓘ |
| operator | Rybinsk Hydroelectric Station operator (Russia) ⓘ |
| outflow | Volga River ⓘ |
| partOf |
Volga River system
ⓘ
linked to:
Volga River
Volga–Kama cascade of reservoirs ⓘ |
| rankInRussiaByArea | one of the largest reservoirs in Russia ⓘ |
| surfaceArea | approximately 4,500 square kilometres ⓘ |
| usedFor |
fisheries
ⓘ
flood control ⓘ hydroelectric power generation ⓘ navigation ⓘ water supply ⓘ |
| waterVolume | approximately 25 cubic kilometres ⓘ |
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: Rybinsk Reservoir Description of subject: 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.
Referenced by (24)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Rybinsk Reservoir
linked to: Rybinsk Reservoir
linked to: Rybinsk Reservoir
subject linked to:
city of Rybinsk
linked to: Rybinsk Reservoir