Fort Meadow Reservoir
E417755
Fort Meadow Reservoir is a recreational lake in Marlborough, Massachusetts, known for activities such as swimming, boating, and fishing.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Fort Meadow Reservoir canonical | 2 |
| Fort Meadow Brook Reservoir | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4040814 — 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: Fort Meadow Reservoir Context triple: [Marlborough, Massachusetts, hasLake, Fort Meadow Reservoir]
-
A.
Greenfield Reservoir
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.
-
B.
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.
-
C.
Wilson Reservoir
Wilson Reservoir is a man-made lake on the Tennessee River in Alabama, created by Wilson Dam, that serves as a key resource for hydroelectric power, navigation, and recreation.
-
D.
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.
-
E.
Millbrook Reservoir
Millbrook Reservoir is a major water storage facility in South Australia that supplies drinking water to Adelaide and surrounding areas.
- 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: Fort Meadow Reservoir Target entity description: Fort Meadow Reservoir is a recreational lake in Marlborough, Massachusetts, known for activities such as swimming, boating, and fishing.
-
A.
Greenfield Reservoir
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.
-
B.
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.
-
C.
Wilson Reservoir
Wilson Reservoir is a man-made lake on the Tennessee River in Alabama, created by Wilson Dam, that serves as a key resource for hydroelectric power, navigation, and recreation.
-
D.
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.
-
E.
Millbrook Reservoir
Millbrook Reservoir is a major water storage facility in South Australia that supplies drinking water to Adelaide and surrounding areas.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf |
lake
ⓘ
recreational lake ⓘ reservoir ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| hasActivitySeason | year-round ⓘ |
| hasEcosystemType | temperate freshwater lake ecosystem ⓘ |
| hasFeature |
boat ramp
ⓘ
freshwater body ⓘ public beach ⓘ residential shoreline development ⓘ seasonal docks ⓘ |
| hasNearbyCity | Marlborough, Massachusetts ⓘ |
| hasNearbyLandUse |
recreational facilities
ⓘ
residential neighborhoods ⓘ |
| hasPrimaryUse | recreation ⓘ |
| hasRegulation |
boating regulations apply
ⓘ
fishing regulations apply ⓘ swimming allowed in designated areas ⓘ |
| hasUse |
boating
ⓘ
canoeing ⓘ fishing ⓘ ice fishing ⓘ kayaking ⓘ motor boating ⓘ personal watercraft riding ⓘ swimming ⓘ waterskiing ⓘ |
| hasWildlife |
aquatic birds
ⓘ
freshwater fish ⓘ |
| isManagedBy | local authorities of Marlborough, Massachusetts ⓘ |
| isPopularFor |
family swimming
ⓘ
recreational boating ⓘ sport fishing ⓘ summer recreation ⓘ |
| locatedIn |
Commonwealth of Massachusetts
ⓘ
linked to:
Massachusetts
Marlborough, Massachusetts ⓘ Middlesex County, Massachusetts ⓘ New England ⓘ |
| locatedInTimeZone | Eastern Time Zone ⓘ |
| peakSeason | summer ⓘ |
| waterType | freshwater ⓘ |
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: Fort Meadow Reservoir Description of subject: Fort Meadow Reservoir is a recreational lake in Marlborough, Massachusetts, known for activities such as swimming, boating, and fishing.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Fort Meadow Reservoir