Long Pond (Harwich and Brewster, Massachusetts)
E426857
Long Pond is a large freshwater kettle pond on Cape Cod, spanning the towns of Harwich and Brewster in Massachusetts and popular for swimming, boating, and fishing.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Long Pond (Harwich and Brewster, Massachusetts) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4284521 — 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: Long Pond (Harwich and Brewster, Massachusetts) Context triple: [Pleasant Lake, locatedNear, Long Pond (Harwich and Brewster, Massachusetts)]
-
A.
Horn Pond, Woburn
Horn Pond in Woburn is a scenic urban pond and recreational area in Massachusetts known for its walking trails, wildlife, and boating and fishing opportunities.
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B.
Spectacle Pond (Littleton, Massachusetts)
Spectacle Pond is a small freshwater lake in Littleton, Massachusetts, known for recreational activities such as fishing, boating, and lakeside relaxation.
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C.
Walden Pond (Lynn)
Walden Pond (Lynn) is a scenic pond within the Lynn Woods Reservation in Lynn, Massachusetts, known for its natural beauty and recreational use.
-
D.
Mashpee Pond
Mashpee Pond is a freshwater lake in the town of Mashpee on Cape Cod, Massachusetts, known for recreation such as fishing, boating, and swimming.
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E.
Ponkapoag Pond
Ponkapoag Pond is a scenic freshwater pond in Massachusetts known for its recreational opportunities such as fishing, boating, and hiking in a natural woodland setting.
- 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: Long Pond (Harwich and Brewster, Massachusetts) Target entity description: Long Pond is a large freshwater kettle pond on Cape Cod, spanning the towns of Harwich and Brewster in Massachusetts and popular for swimming, boating, and fishing.
-
A.
Horn Pond, Woburn
Horn Pond in Woburn is a scenic urban pond and recreational area in Massachusetts known for its walking trails, wildlife, and boating and fishing opportunities.
-
B.
Spectacle Pond (Littleton, Massachusetts)
Spectacle Pond is a small freshwater lake in Littleton, Massachusetts, known for recreational activities such as fishing, boating, and lakeside relaxation.
-
C.
Walden Pond (Lynn)
Walden Pond (Lynn) is a scenic pond within the Lynn Woods Reservation in Lynn, Massachusetts, known for its natural beauty and recreational use.
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D.
Mashpee Pond
Mashpee Pond is a freshwater lake in the town of Mashpee on Cape Cod, Massachusetts, known for recreation such as fishing, boating, and swimming.
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E.
Ponkapoag Pond
Ponkapoag Pond is a scenic freshwater pond in Massachusetts known for its recreational opportunities such as fishing, boating, and hiking in a natural woodland setting.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf |
freshwater lake
ⓘ
kettle pond ⓘ natural water body ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| formedBy | glacial activity ⓘ |
| hasEnvironment | freshwater pond ecosystem ⓘ |
| hasFeature |
glacially formed basin
ⓘ
natural shoreline ⓘ |
| hasName | Long Pond NERFINISHED ⓘ |
| hasRecreationalActivity |
canoeing
ⓘ
kayaking ⓘ paddleboarding ⓘ swimming from public access areas ⓘ |
| hasRecreationalFishing | warmwater species ⓘ |
| hasShorelineIn |
Town of Brewster
NERFINISHED
ⓘ
Town of Harwich NERFINISHED ⓘ |
| hasUse |
non-motorized boating
ⓘ
recreation ⓘ sport fishing ⓘ |
| hasWaterBodyType | pond ⓘ |
| isAccessibleFor |
shore fishing
ⓘ
small boats ⓘ |
| isOnPeninsula | Cape Cod NERFINISHED ⓘ |
| isPopularWith |
local residents
ⓘ
tourists ⓘ |
| knownFor |
boating
ⓘ
fishing ⓘ swimming ⓘ |
| locatedIn |
Barnstable County, Massachusetts
ⓘ
Brewster, Massachusetts NERFINISHED ⓘ Cape Cod ⓘ Harwich, Massachusetts NERFINISHED ⓘ Massachusetts ⓘ United States of America ⓘ
surface form:
United States
|
| partOf | Cape Cod kettle pond system NERFINISHED ⓘ |
| region | New England NERFINISHED ⓘ |
| straddlesBoundaryOf |
Brewster, Massachusetts
NERFINISHED
ⓘ
Harwich, Massachusetts NERFINISHED ⓘ |
| 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: Long Pond (Harwich and Brewster, Massachusetts) Description of subject: Long Pond is a large freshwater kettle pond on Cape Cod, spanning the towns of Harwich and Brewster in Massachusetts and popular for swimming, boating, and fishing.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.