West Branch Reservoir
E1025703
West Branch Reservoir is a man-made lake in Colebrook, Connecticut, primarily used for water supply, flood control, and recreation.
All labels observed (1)
| Label | Occurrences |
|---|---|
| West Branch Reservoir canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T12291459 — 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: West Branch Reservoir Context triple: [Colebrook, Connecticut, hasWaterBody, West Branch Reservoir]
-
A.
West Branch Reservoir
West Branch Reservoir is a man-made water body in New York that serves as part of the New York City water supply system and offers limited recreational opportunities.
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B.
East Branch Reservoir
East Branch Reservoir is a man-made water supply reservoir in New York’s Croton Watershed that helps provide drinking water to New York City.
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C.
Muscoot Reservoir
Muscoot Reservoir is a man-made lake in Westchester County, New York, that serves as a key component of New York City’s Croton water supply system.
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D.
Dog River Reservoir
Dog River Reservoir is a man-made lake in Douglas County, Georgia, primarily serving as a drinking water source and recreational area for the local community.
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E.
Hemlocks Reservoir
Hemlocks Reservoir is a freshwater body in Easton, Connecticut, known primarily as part of the region’s public drinking water supply and scenic natural landscape.
- 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: West Branch Reservoir Target entity description: West Branch Reservoir is a man-made lake in Colebrook, Connecticut, primarily used for water supply, flood control, and recreation.
-
A.
West Branch Reservoir
West Branch Reservoir is a man-made water body in New York that serves as part of the New York City water supply system and offers limited recreational opportunities.
-
B.
East Branch Reservoir
East Branch Reservoir is a man-made water supply reservoir in New York’s Croton Watershed that helps provide drinking water to New York City.
-
C.
Muscoot Reservoir
Muscoot Reservoir is a man-made lake in Westchester County, New York, that serves as a key component of New York City’s Croton water supply system.
-
D.
Dog River Reservoir
Dog River Reservoir is a man-made lake in Douglas County, Georgia, primarily serving as a drinking water source and recreational area for the local community.
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E.
Hemlocks Reservoir
Hemlocks Reservoir is a freshwater body in Easton, Connecticut, known primarily as part of the region’s public drinking water supply and scenic natural landscape.
- F. None of above. chosen
Statements (28)
| Predicate | Object |
|---|---|
| instanceOf |
man-made lake
ⓘ
reservoir ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| country |
United States of America
ⓘ
surface form:
United States
|
| hasFloodControlFunction | attenuates high flows on the West Branch Farmington River ⓘ |
| hasRecreationRule | recreational use subject to water-supply protection regulations ⓘ |
| hasStructure | Colebrook River Lake dam (nearby federal flood-control dam) NERFINISHED ⓘ |
| inflow | West Branch Farmington River NERFINISHED ⓘ |
| isPartOfSystem | Metropolitan District Commission West Branch water supply system NERFINISHED ⓘ |
| locatedIn |
Colebrook, Connecticut
NERFINISHED
ⓘ
Connecticut ⓘ Litchfield County, Connecticut NERFINISHED ⓘ |
| locatedInTimeZone | Eastern Time Zone ⓘ |
| managedBy | Metropolitan District Commission of Connecticut NERFINISHED ⓘ |
| near |
Barkhamsted Reservoir
NERFINISHED
ⓘ
Colebrook River Lake NERFINISHED ⓘ Town of Colebrook NERFINISHED ⓘ |
| operator | Metropolitan District Commission of Connecticut NERFINISHED ⓘ |
| outflow | West Branch Farmington River NERFINISHED ⓘ |
| partOf |
Connecticut water supply system
NERFINISHED
ⓘ
Farmington River watershed NERFINISHED ⓘ |
| primaryUse |
drinking water supply
ⓘ
flood control ⓘ recreation ⓘ |
| usedFor |
boating
ⓘ
fishing ⓘ hiking access ⓘ |
| watercourse | West Branch Farmington River 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: West Branch Reservoir Description of subject: West Branch Reservoir is a man-made lake in Colebrook, Connecticut, primarily used for water supply, flood control, and recreation.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Colebrook, Connecticut