Dhünntalsperre
E1002261
Dhünntalsperre is a large drinking-water reservoir and dam complex in North Rhine-Westphalia, Germany, serving as a key water supply and recreational area in the Bergisches Land region.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Dhünntalsperre canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T12600306 — 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: Dhünntalsperre Context triple: [Bergisches Land, hasReservoir, Dhünntalsperre]
-
A.
Bruchertalsperre
Bruchertalsperre is a reservoir in Germany’s Bergisches Land region, used primarily for water supply, flood control, and recreation.
-
B.
Aggertalsperre
Aggertalsperre is a dam and reservoir in Germany’s Bergisches Land region, primarily used for water supply, flood control, and recreation.
-
C.
Wupper-Talsperre
Wupper-Talsperre is a major reservoir in Germany’s Bergisches Land region, primarily used for drinking water supply, flood control, and recreation along the River Wupper.
-
D.
Schluchsee Dam
Schluchsee Dam is a hydroelectric and water regulation dam in Germany’s Black Forest that creates the Schluchsee reservoir, a major regional lake and recreation area.
-
E.
Edersee Dam
The Edersee Dam is a large gravity dam in Germany’s Eder Valley, historically known for being one of the key German dams attacked by the RAF’s “Dambusters” using bouncing bombs during World War II.
- 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: Dhünntalsperre Target entity description: Dhünntalsperre is a large drinking-water reservoir and dam complex in North Rhine-Westphalia, Germany, serving as a key water supply and recreational area in the Bergisches Land region.
-
A.
Bruchertalsperre
Bruchertalsperre is a reservoir in Germany’s Bergisches Land region, used primarily for water supply, flood control, and recreation.
-
B.
Aggertalsperre
Aggertalsperre is a dam and reservoir in Germany’s Bergisches Land region, primarily used for water supply, flood control, and recreation.
-
C.
Wupper-Talsperre
Wupper-Talsperre is a major reservoir in Germany’s Bergisches Land region, primarily used for drinking water supply, flood control, and recreation along the River Wupper.
-
D.
Schluchsee Dam
Schluchsee Dam is a hydroelectric and water regulation dam in Germany’s Black Forest that creates the Schluchsee reservoir, a major regional lake and recreation area.
-
E.
Edersee Dam
The Edersee Dam is a large gravity dam in Germany’s Eder Valley, historically known for being one of the key German dams attacked by the RAF’s “Dambusters” using bouncing bombs during World War II.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
dam
ⓘ
drinking water reservoir ⓘ reservoir ⓘ |
| basinCountry | Germany ⓘ |
| catchmentArea | 147 square kilometres ⓘ |
| completionDate | 1985 ⓘ |
| constructionStart | 1975 ⓘ |
| country | Germany NERFINISHED ⓘ |
| damHeight | 53 metres ⓘ |
| damLength | 1230 metres ⓘ |
| damType | earth-fill dam ⓘ |
| hasActivity |
angling in designated areas
ⓘ
cycling ⓘ hiking ⓘ |
| hasEnvironmentalProtectionStatus | water protection area ⓘ |
| hasFunction |
balancing river flow of the Dhünn
ⓘ
securing drinking water for the Cologne metropolitan area ⓘ |
| hasNearbySettlement | Altenberg NERFINISHED ⓘ |
| hasNearbyStructure | Altenberger Dom NERFINISHED ⓘ |
| hasShorelineUse |
limited tourism infrastructure
ⓘ
nature conservation ⓘ |
| hasUseRestriction | bathing prohibited in main reservoir ⓘ |
| inception | 1985 ⓘ |
| isPartOfWaterSupplySystemFor |
Bergisches Land region
NERFINISHED
ⓘ
Cologne region NERFINISHED ⓘ |
| locatedIn |
Bergisches Land
NERFINISHED
ⓘ
North Rhine-Westphalia ⓘ |
| locatedInAdministrativeRegion |
Oberbergischer Kreis
NERFINISHED
ⓘ
Rheinisch-Bergischer Kreis NERFINISHED ⓘ |
| locatedInMunicipality |
Kürten
NERFINISHED
ⓘ
Odenthal NERFINISHED ⓘ Wermelskirchen NERFINISHED ⓘ |
| locatedInProtectedArea | Bergisches Land nature park NERFINISHED ⓘ |
| locatedInRegion | Western Germany NERFINISHED ⓘ |
| locatedNear |
Bergisch Gladbach
NERFINISHED
ⓘ
Cologne NERFINISHED ⓘ |
| openingDate | 1988 ⓘ |
| operator | Wupperverband NERFINISHED ⓘ |
| partOf | Dhünn river system NERFINISHED ⓘ |
| reservoirCapacity | 81000000 cubic metres ⓘ |
| river | Dhünn NERFINISHED ⓘ |
| surfaceArea | 4.18 square kilometres ⓘ |
| use |
drinking water supply
ⓘ
flood control ⓘ recreation ⓘ |
| waterBody | Dhünn NERFINISHED ⓘ |
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: Dhünntalsperre Description of subject: Dhünntalsperre is a large drinking-water reservoir and dam complex in North Rhine-Westphalia, Germany, serving as a key water supply and recreational area in the Bergisches Land region.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.