Ladybower Reservoir
E114602
Ladybower Reservoir is a large Y-shaped drinking-water reservoir in the Upper Derwent Valley of Derbyshire, England, known for its distinctive plughole spillways and surrounding Peak District scenery.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Ladybower Reservoir canonical | 10 |
| Derwent Valley reservoirs | 2 |
| Ladybower Dam | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T962889 — 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: Ladybower Reservoir Context triple: [Derbyshire, containsWaterBody, Ladybower Reservoir]
-
A.
Dovestones Reservoir
Dovestones Reservoir is a scenic man-made lake in the Peak District near Oldham, England, popular for walking, wildlife, and outdoor recreation.
-
B.
Foziling Reservoir
Foziling Reservoir is a major multipurpose water conservancy project in Anhui Province, China, known for flood control, irrigation, and water supply within the Huai River basin.
-
C.
Bog Brook Reservoir
Bog Brook Reservoir is a small New York City water supply reservoir in southeastern New York State that forms part of the Croton Watershed system.
-
D.
Coniston Water
Coniston Water is a scenic lake in England’s Lake District, known for its dramatic surrounding fells, boating, and literary and historical associations.
-
E.
Minster Pool
Minster Pool is a historic ornamental lake in the center of Lichfield, England, known for its picturesque views of Lichfield Cathedral and surrounding parkland.
- 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: Ladybower Reservoir Target entity description: Ladybower Reservoir is a large Y-shaped drinking-water reservoir in the Upper Derwent Valley of Derbyshire, England, known for its distinctive plughole spillways and surrounding Peak District scenery.
-
A.
Dovestones Reservoir
Dovestones Reservoir is a scenic man-made lake in the Peak District near Oldham, England, popular for walking, wildlife, and outdoor recreation.
-
B.
Foziling Reservoir
Foziling Reservoir is a major multipurpose water conservancy project in Anhui Province, China, known for flood control, irrigation, and water supply within the Huai River basin.
-
C.
Bog Brook Reservoir
Bog Brook Reservoir is a small New York City water supply reservoir in southeastern New York State that forms part of the Croton Watershed system.
-
D.
Coniston Water
Coniston Water is a scenic lake in England’s Lake District, known for its dramatic surrounding fells, boating, and literary and historical associations.
-
E.
Minster Pool
Minster Pool is a historic ornamental lake in the center of Lichfield, England, known for its picturesque views of Lichfield Cathedral and surrounding parkland.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
drinking water reservoir
ⓘ
reservoir ⓘ |
| basinCountry | United Kingdom ⓘ |
| completionDate | 1943 ⓘ |
| constructionStartDate | 1935 ⓘ |
| country | United Kingdom ⓘ |
| createdBy | Derwent Valley Water Board ⓘ |
| hasBridge |
Ashopton Viaduct
ⓘ
Ashopton Viaduct ⓘ
surface form:
Ladybower Viaduct
|
| hasIsland | Derwent church tower (occasionally visible remains) ⓘ |
| hasRecreationalPath | paths connecting to the Pennine Way (via surrounding area) ⓘ |
| hasSpillwayType |
bell-mouth spillway
ⓘ
plughole spillway ⓘ |
| heritage | associated with drowned villages of Derwent and Ashopton ⓘ |
| inflow |
River Ashop
ⓘ
River Derwent ⓘ |
| knownFor |
distinctive plughole spillways
ⓘ
scenic Peak District surroundings ⓘ |
| locatedIn |
Derbyshire
ⓘ
England ⓘ Peak District ⓘ
surface form:
Peak District National Park
Upper Derwent Valley ⓘ |
| locatedNear |
Ashopton
ⓘ
Bamford ⓘ River Derwent ⓘ
surface form:
Derwent
|
| maxDepth | about 40 metres ⓘ |
| nearProtectedArea |
Stanage Edge
ⓘ
surface form:
Derwent Edge
Win Hill ⓘ |
| nearRoad |
A57 road
NERFINISHED
ⓘ
A6013 road NERFINISHED ⓘ |
| openingDate | 1945 ⓘ |
| operator | Severn Trent Water ⓘ |
| outflow | River Derwent ⓘ |
| partOf |
Derwent Reservoir
ⓘ
surface form:
Derwent Valley Reservoirs
Derwent Valley Water Board ⓘ
surface form:
Derwent Valley Water Scheme
|
| purpose |
flood control
ⓘ
public water supply ⓘ recreation ⓘ |
| region | East Midlands ⓘ |
| shape | Y-shaped ⓘ |
| submergedSettlement |
Ashopton
ⓘ
River Derwent ⓘ
surface form:
Derwent
|
| surfaceArea | about 2.5 square kilometres ⓘ |
| usedFor |
angling
ⓘ
cycling ⓘ walking ⓘ wildlife observation ⓘ |
| watercourse | River Derwent ⓘ |
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: Ladybower Reservoir Description of subject: Ladybower Reservoir is a large Y-shaped drinking-water reservoir in the Upper Derwent Valley of Derbyshire, England, known for its distinctive plughole spillways and surrounding Peak District scenery.
Referenced by (13)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
River Derwent (Derbyshire)
this entity surface form:
Derwent Valley reservoirs
this entity surface form:
Ladybower Dam