Ennepe Dam
E819556
Ennepe Dam is a German reservoir dam in North Rhine-Westphalia that was one of the targets of the World War II Dambusters Raid.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Ennepe Dam canonical | 3 |
| Ennepe Reservoir | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T9525754 — 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: Ennepe Dam Context triple: [Dambusters Raid sites, hasPart, Ennepe Dam]
-
A.
Sorpe Dam
The Sorpe Dam is a German earth-fill dam in the Ruhr region that was a key target of the RAF’s World War II “Dambusters” raid, Operation Chastise.
-
B.
Bütgenbach Dam
Bütgenbach Dam is a hydroelectric and flood-control structure in eastern Belgium that creates Lake Bütgenbach, a popular site for recreation and water sports.
-
C.
Hohenwarte Dam
Hohenwarte Dam is a large hydroelectric and flood-control dam on the Saale River in Thuringia, Germany, forming one of the country’s significant reservoir lakes.
-
D.
Eder Dam
Eder Dam is a major German gravity dam in the Eder River valley, historically known for being one of the dams breached by the RAF’s “Dambusters” raid during World War II.
-
E.
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.
- 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: Ennepe Dam Target entity description: Ennepe Dam is a German reservoir dam in North Rhine-Westphalia that was one of the targets of the World War II Dambusters Raid.
-
A.
Sorpe Dam
The Sorpe Dam is a German earth-fill dam in the Ruhr region that was a key target of the RAF’s World War II “Dambusters” raid, Operation Chastise.
-
B.
Bütgenbach Dam
Bütgenbach Dam is a hydroelectric and flood-control structure in eastern Belgium that creates Lake Bütgenbach, a popular site for recreation and water sports.
-
C.
Hohenwarte Dam
Hohenwarte Dam is a large hydroelectric and flood-control dam on the Saale River in Thuringia, Germany, forming one of the country’s significant reservoir lakes.
-
D.
Eder Dam
Eder Dam is a major German gravity dam in the Eder River valley, historically known for being one of the dams breached by the RAF’s “Dambusters” raid during World War II.
-
E.
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.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
gravity dam
ⓘ
infrastructure in Germany ⓘ reservoir dam ⓘ |
| architecturalStyle | masonry gravity dam ⓘ |
| attackedBy | Royal Air Force ⓘ |
| attackedOnDate | 16–17 May 1943 ⓘ |
| attackOutcome | not breached in Dambusters Raid ⓘ |
| basinArea | approximately 60 square kilometres ⓘ |
| conflict | World War II ⓘ |
| constructionStartDate | 1902 ⓘ |
| country | Germany ⓘ |
| hasCatchment | Ennepe catchment area ⓘ |
| hasHeritageStatus | protected monument in North Rhine-Westphalia ⓘ |
| hasPurpose |
flood control
ⓘ
low-flow regulation ⓘ recreation ⓘ water supply ⓘ |
| hasSpillway | overflow spillway ⓘ |
| height | approximately 50 metres ⓘ |
| impounds |
Ennepe River
ⓘ
linked to:
Ennepe
|
| inception | 1904 ⓘ |
| length | approximately 400 metres ⓘ |
| locatedIn |
Ennepe-Ruhr-Kreis
ⓘ
North Rhine-Westphalia ⓘ |
| locatedInTimeZone |
Central European Summer Time
ⓘ
Central European Time ⓘ |
| locatedNear |
Bremen (Ennepe-Ruhr-Kreis)
ⓘ
Hagen ⓘ Schwelm ⓘ |
| locatedOn |
Ennepe River
ⓘ
linked to:
Ennepe
|
| materialUsed |
concrete
ⓘ
rubble stone ⓘ |
| nearbyCity |
Hagen
ⓘ
Wuppertal ⓘ |
| openingDate | 1904 ⓘ |
| operator | Ruhrverband ⓘ |
| ownedBy | Ruhrverband ⓘ |
| partOf |
Ruhr river basin
ⓘ
linked to:
Ruhr
system of Ruhrverband reservoirs ⓘ |
| reservoirCapacity | approximately 12 million cubic metres ⓘ |
| usedFor |
angling
ⓘ
boating ⓘ drinking water supply for the Ruhr area ⓘ industrial water supply ⓘ tourism ⓘ |
| wasTargetOf |
Dambusters Raid
ⓘ
linked to:
Dambusters
Operation Chastise ⓘ |
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: Ennepe Dam Description of subject: Ennepe Dam is a German reservoir dam in North Rhine-Westphalia that was one of the targets of the World War II Dambusters Raid.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Ennepe Dam
linked to: Ennepe Dam