Greenfield Reservoir
E194140
Greenfield Reservoir is a man-made water reservoir in the Saddleworth area of Greater Manchester, England, forming part of the network of upland reservoirs in the Peak District.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Greenfield Reservoir canonical | 2 |
| Greenfield Valley reservoir system | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1602101 — 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: Greenfield Reservoir Context triple: [Dovestones Reservoir, nearbyWaterBody, Greenfield Reservoir]
-
A.
Hillview Reservoir
Hillview Reservoir is a key New York City water storage facility that serves as the final holding basin for treated water before it enters the city’s distribution system.
-
B.
Union Valley Reservoir
Union Valley Reservoir is a large man-made lake in California’s Sierra Nevada used for recreation and hydroelectric power within Eldorado National Forest.
-
C.
John Martin Reservoir
John Martin Reservoir is a large man-made lake and state park in southeastern Colorado known for its water recreation, birdwatching, and role in regional water storage and flood control.
-
D.
Silver Lake Reservoir
Silver Lake Reservoir is a man-made urban lake and surrounding recreational area in Los Angeles, California, known for its walking paths, scenic views, and role as a local water storage facility.
-
E.
Ice House Reservoir
Ice House Reservoir is a popular alpine lake in California’s Sierra Nevada known for camping, boating, and fishing within the Eldorado National Forest.
- 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: Greenfield Reservoir Target entity description: Greenfield Reservoir is a man-made water reservoir in the Saddleworth area of Greater Manchester, England, forming part of the network of upland reservoirs in the Peak District.
-
A.
Hillview Reservoir
Hillview Reservoir is a key New York City water storage facility that serves as the final holding basin for treated water before it enters the city’s distribution system.
-
B.
Union Valley Reservoir
Union Valley Reservoir is a large man-made lake in California’s Sierra Nevada used for recreation and hydroelectric power within Eldorado National Forest.
-
C.
John Martin Reservoir
John Martin Reservoir is a large man-made lake and state park in southeastern Colorado known for its water recreation, birdwatching, and role in regional water storage and flood control.
-
D.
Silver Lake Reservoir
Silver Lake Reservoir is a man-made urban lake and surrounding recreational area in Los Angeles, California, known for its walking paths, scenic views, and role as a local water storage facility.
-
E.
Ice House Reservoir
Ice House Reservoir is a popular alpine lake in California’s Sierra Nevada known for camping, boating, and fishing within the Eldorado National Forest.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
man-made lake
ⓘ
reservoir ⓘ |
| basinCountry | United Kingdom ⓘ |
| country | United Kingdom ⓘ |
| formedBy | dam on Greenfield Brook ⓘ |
| hasShoreFeature |
footpaths
ⓘ
scenic viewpoints ⓘ walking routes ⓘ |
| hasType | upland reservoir ⓘ |
| locatedIn |
England
ⓘ
Greater Manchester ⓘ Oldham borough ⓘ
surface form:
Metropolitan Borough of Oldham
Peak District ⓘ Pennines ⓘ Saddleworth ⓘ |
| locatedInProtectedArea |
Peak District
ⓘ
surface form:
Peak District National Park
|
| locatedNear |
Chew Reservoir
ⓘ
Dovestones Reservoir ⓘ
surface form:
Dovestone Reservoir
Greenfield village ⓘ Yeoman Hey Reservoir ⓘ |
| near |
A635 road
NERFINISHED
ⓘ
Saddleworth Moor ⓘ |
| partOf |
Greenfield Reservoir
self-linksurface differs
ⓘ
surface form:
Greenfield Valley reservoir system
network of upland reservoirs in the Peak District ⓘ |
| region | North West England ⓘ |
| usedFor |
drinking water supply
ⓘ
recreation ⓘ water storage ⓘ |
| watercourse | Greenfield Brook ⓘ |
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: Greenfield Reservoir Description of subject: Greenfield Reservoir is a man-made water reservoir in the Saddleworth area of Greater Manchester, England, forming part of the network of upland reservoirs in the Peak District.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Greenfield Valley reservoir system