Middle Branch Reservoir
E15369
Middle Branch Reservoir is a man-made lake in New York’s Croton Watershed that serves as part of the New York City water supply system.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Middle Branch Reservoir canonical | 8 |
How this entity was disambiguated
This entity first appeared as the object of triple T91445 — 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: Middle Branch Reservoir Context triple: [Croton River, hasPart, Middle Branch Reservoir]
-
A.
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.
-
B.
Croton Falls Reservoir
Croton Falls Reservoir is a man-made lake in Westchester County, New York, that serves as part of New York City's Croton water supply system.
-
C.
Hollywood Reservoir
Hollywood Reservoir is a man-made lake in the Hollywood Hills of Los Angeles, known for its scenic walking paths and iconic views of the Hollywood Sign.
-
D.
Silver Lake
Silver Lake is a trendy, historically bohemian neighborhood in central Los Angeles known for its reservoir, hillside homes, and vibrant arts, dining, and nightlife scenes.
-
E.
Jamaica Pond
Jamaica Pond is a large freshwater kettle pond and popular recreational area in Boston, known for boating, walking paths, and scenic views within the city’s park system.
- 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: Middle Branch Reservoir Target entity description: Middle Branch Reservoir is a man-made lake in New York’s Croton Watershed that serves as part of the New York City water supply system.
-
A.
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.
-
B.
Croton Falls Reservoir
Croton Falls Reservoir is a man-made lake in Westchester County, New York, that serves as part of New York City's Croton water supply system.
-
C.
Hollywood Reservoir
Hollywood Reservoir is a man-made lake in the Hollywood Hills of Los Angeles, known for its scenic walking paths and iconic views of the Hollywood Sign.
-
D.
Silver Lake
Silver Lake is a trendy, historically bohemian neighborhood in central Los Angeles known for its reservoir, hillside homes, and vibrant arts, dining, and nightlife scenes.
-
E.
Jamaica Pond
Jamaica Pond is a large freshwater kettle pond and popular recreational area in Boston, known for boating, walking paths, and scenic views within the city’s park system.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
drinking water reservoir
ⓘ
man-made lake ⓘ reservoir ⓘ |
| basinCountry |
United States
ⓘ
linked to:
United States of America
|
| capacity |
approximately 15.5 million cubic metres
ⓘ
approximately 4.1 billion US gallons ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| createdBy | damming of the Middle Branch of the Croton River ⓘ |
| feedsInto | Croton River ⓘ |
| hasAccessRoad | New York State Route 312 vicinity ⓘ |
| hasFishingRegulations | yes ⓘ |
| hasFunction |
flow regulation in Croton system
ⓘ
storage for New York City aqueduct system ⓘ |
| hasShorelineUseRestrictions | yes ⓘ |
| inflow |
Middle Branch of the Croton River
ⓘ
linked to:
Middle Branch Croton River
|
| isLocatedOn | Middle Branch Croton River ⓘ |
| isManagedAs | restricted watershed area ⓘ |
| isOwnedBy |
City of New York
ⓘ
linked to:
New York City
|
| isPartOfInfrastructure | New York City water supply reservoirs network ⓘ |
| isProtectedFor | New York City drinking water protection ⓘ |
| isUpstreamOf | Croton Falls Reservoir ⓘ |
| locatedIn |
Putnam County, New York
ⓘ
Town of Southeast, New York ⓘ
linked to:
Town of Southeast
southeastern New York State ⓘ |
| locatedInState | New York ⓘ |
| locatedInWatershed | Croton Watershed ⓘ |
| locatedNear | Brewster, New York ⓘ |
| locatedNorthOf | New York City ⓘ |
| manages | New York City Department of Environmental Protection ⓘ |
| operator | New York City Department of Environmental Protection ⓘ |
| outflow |
Middle Branch of the Croton River
ⓘ
linked to:
Middle Branch Croton River
|
| partOf |
Croton River system
ⓘ
linked to:
Croton River
Croton water supply system ⓘ New York City water supply system ⓘ |
| primaryUse |
drinking water storage
ⓘ
municipal water supply ⓘ |
| prohibitsActivity |
boating without permit
ⓘ
contact recreation ⓘ swimming ⓘ |
| region | Hudson Valley ⓘ |
| surfaceArea |
approximately 1.6 square kilometres
ⓘ
approximately 400 acres ⓘ |
| waterBodyType | freshwater reservoir ⓘ |
| waterQualityUse | potable water supply ⓘ |
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: Middle Branch Reservoir Description of subject: Middle Branch Reservoir is a man-made lake in New York’s Croton Watershed that serves as part of the New York City water supply system.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.