John Martin Reservoir
E183701
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| John Martin Reservoir canonical | 10 |
How this entity was disambiguated
This entity first appeared as the object of triple T1564095 — 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: John Martin Reservoir Context triple: [Southeastern Colorado, contains, John Martin Reservoir]
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A.
Fells Reservoir
Fells Reservoir is a man-made water body in Massachusetts that serves as part of the regional water supply and recreational landscape within the Middlesex Fells Reservation.
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B.
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.
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C.
Amawalk Reservoir
Amawalk Reservoir is a man-made lake in Westchester County, New York, that forms part of New York City's Croton water supply system.
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D.
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.
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E.
Don Pedro Reservoir
Don Pedro Reservoir is a large artificial lake in California’s Sierra Nevada foothills, primarily used for water storage, hydroelectric power generation, and recreation.
- 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: John Martin Reservoir Target entity description: 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.
-
A.
Fells Reservoir
Fells Reservoir is a man-made water body in Massachusetts that serves as part of the regional water supply and recreational landscape within the Middlesex Fells Reservation.
-
B.
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.
-
C.
Amawalk Reservoir
Amawalk Reservoir is a man-made lake in Westchester County, New York, that forms part of New York City's Croton water supply system.
-
D.
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.
-
E.
Don Pedro Reservoir
Don Pedro Reservoir is a large artificial lake in California’s Sierra Nevada foothills, primarily used for water storage, hydroelectric power generation, and recreation.
- F. None of above. chosen
Statements (46)
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: John Martin Reservoir Description of subject: 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.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.