Howden Dam
E508481
Howden Dam is a large masonry dam in Derbyshire, England, forming part of the Upper Derwent Valley reservoir system and known for its impressive architecture and role in regional water supply.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Howden Dam canonical | 2 |
| Kinder Reservoir dam | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5156119 — 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: Howden Dam Context triple: [Derwent Reservoir, hasFeature, Howden Dam]
-
A.
Denison Dam
Denison Dam is a large earthen dam on the Red River between Texas and Oklahoma, built for flood control, hydroelectric power generation, and water supply.
-
B.
Duncan Dam
Duncan Dam is a major hydroelectric and flood-control dam on the Duncan River in British Columbia, forming part of the Columbia River Treaty system.
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C.
McClure Dam
McClure Dam is a hydroelectric dam on the Dead River in Michigan, forming McClure Basin and providing power and water management for the surrounding region.
-
D.
Gillespie Dam
Gillespie Dam is an early 20th-century concrete gravity dam on Arizona’s Gila River, historically used for irrigation and now noted as a local landmark and wildlife habitat area.
-
E.
Fengman Dam
Fengman Dam is a large hydroelectric gravity dam on the Songhua River in Jilin Province, China, known for its significant role in regional power generation and flood control.
- 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: Howden Dam Target entity description: Howden Dam is a large masonry dam in Derbyshire, England, forming part of the Upper Derwent Valley reservoir system and known for its impressive architecture and role in regional water supply.
-
A.
Denison Dam
Denison Dam is a large earthen dam on the Red River between Texas and Oklahoma, built for flood control, hydroelectric power generation, and water supply.
-
B.
Duncan Dam
Duncan Dam is a major hydroelectric and flood-control dam on the Duncan River in British Columbia, forming part of the Columbia River Treaty system.
-
C.
McClure Dam
McClure Dam is a hydroelectric dam on the Dead River in Michigan, forming McClure Basin and providing power and water management for the surrounding region.
-
D.
Gillespie Dam
Gillespie Dam is an early 20th-century concrete gravity dam on Arizona’s Gila River, historically used for irrigation and now noted as a local landmark and wildlife habitat area.
-
E.
Fengman Dam
Fengman Dam is a large hydroelectric gravity dam on the Songhua River in Jilin Province, China, known for its significant role in regional power generation and flood control.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
masonry dam
ⓘ
reservoir dam ⓘ |
| architecturalStyle | Victorian-era engineering architecture ⓘ |
| basinCountry | United Kingdom ⓘ |
| constructionBegan | 1901 ⓘ |
| constructionMaterial | stone masonry ⓘ |
| country | United Kingdom ⓘ |
| createsReservoir | Howden Reservoir NERFINISHED ⓘ |
| hasAccessRoad | Derwent Valley road NERFINISHED ⓘ |
| hasSpillway | overflow spillway ⓘ |
| height | about 34 metres ⓘ |
| impounds | River Derwent NERFINISHED ⓘ |
| knownFor |
impressive masonry architecture
ⓘ
role in regional water supply ⓘ |
| length | about 472 metres ⓘ |
| locatedIn |
Derbyshire
ⓘ
England ⓘ Upper Derwent Valley NERFINISHED ⓘ |
| locatedInProtectedArea | Peak District National Park NERFINISHED ⓘ |
| locatedNear | A57 Snake Pass NERFINISHED ⓘ |
| near |
Derwent Dam
NERFINISHED
ⓘ
Ladybower Dam NERFINISHED ⓘ |
| opened | 1912 ⓘ |
| operator | Severn Trent Water NERFINISHED ⓘ |
| partOf |
Derwent Valley water supply scheme
NERFINISHED
ⓘ
Upper Derwent Valley reservoir system NERFINISHED ⓘ |
| purpose | water supply ⓘ |
| regionServed |
Derbyshire
NERFINISHED
ⓘ
South Yorkshire NERFINISHED ⓘ |
| reservoirCapacity | Howden Reservoir NERFINISHED ⓘ |
| usedBy | walkers and cyclists ⓘ |
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: Howden Dam Description of subject: Howden Dam is a large masonry dam in Derbyshire, England, forming part of the Upper Derwent Valley reservoir system and known for its impressive architecture and role in regional water supply.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Kinder Reservoir dam