East Branch Reservoir
E14757
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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| East Branch Reservoir canonical | 10 |
How this entity was disambiguated
This entity first appeared as the object of triple T91444 — 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: East Branch Reservoir Context triple: [Croton River, hasPart, East Branch Reservoir]
-
A.
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.
-
B.
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.
-
C.
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.
-
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.
Poucha Pond
Poucha Pond is a small tidal pond on Chappaquiddick Island in Massachusetts, best known as the site of the 1969 Chappaquiddick incident involving Senator Ted Kennedy.
- 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: East Branch Reservoir Target entity description: 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.
-
A.
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.
-
B.
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.
-
C.
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.
-
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.
Poucha Pond
Poucha Pond is a small tidal pond on Chappaquiddick Island in Massachusetts, best known as the site of the 1969 Chappaquiddick incident involving Senator Ted Kennedy.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
drinking water reservoir
ⓘ
man-made lake ⓘ reservoir ⓘ |
| accessControlledBy | New York City Department of Environmental Protection ⓘ |
| basinCountry |
United States of America
ⓘ
surface form:
United States
|
| cityServed | New York City ⓘ |
| connectedTo |
Bog Brook Reservoir
ⓘ
Croton Falls Reservoir ⓘ Croton River ⓘ |
| constructionType | impoundment reservoir ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| createdBy | damming of the East Branch Croton River ⓘ |
| function |
regulation of river flow
ⓘ
storage of raw water prior to treatment ⓘ |
| hasEnvironmentalRole |
aquatic habitat
ⓘ
regional water storage ⓘ |
| isPartOfInfrastructure | New York City municipal infrastructure ⓘ |
| locatedIn | Putnam County, New York ⓘ |
| locatedInHydrologicSystem |
Croton Watershed
ⓘ
surface form:
Croton River watershed
|
| locatedInRegion |
Hudson Valley
ⓘ
southeastern New York ⓘ |
| locatedInWatershed | Croton Watershed ⓘ |
| locatedNear |
Interstate 684
ⓘ
Interstate 84 ⓘ Town of Southeast ⓘ
surface form:
Town of Southeast, New York
Village of Brewster ⓘ
surface form:
Village of Brewster, New York
|
| locatedOnRiver | East Branch Croton River ⓘ |
| managedBy | New York City Department of Environmental Protection ⓘ |
| notableFor | being part of the oldest components of the New York City water supply ⓘ |
| owner |
New York City
ⓘ
surface form:
City of New York
|
| partOf |
Croton River
ⓘ
surface form:
Croton River basin
Croton water supply system ⓘ New York City water supply system ⓘ |
| purpose |
drinking water storage
ⓘ
municipal water supply ⓘ |
| state | New York ⓘ |
| suppliesWaterTo |
Croton water supply system
ⓘ
New York City ⓘ |
| useRestriction |
limited recreational access with permit
ⓘ
no power boating ⓘ no swimming ⓘ |
| watercourse | East Branch Croton River ⓘ |
| waterType | freshwater ⓘ |
| waterUse | public 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: East Branch Reservoir Description of subject: 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.
Referenced by (10)
Full triples — surface form annotated when it differs from this entity's canonical label.