Ned’s Point Lighthouse
E629205
Ned’s Point Lighthouse is a historic 19th-century stone lighthouse located on Ned’s Point in Mattapoisett, Massachusetts, overlooking Buzzards Bay.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Ned’s Point Lighthouse canonical | 2 |
| Ned’s Point Light | 1 |
| Ned’s Point Lighthouse Reservation | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6783671 — 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: Ned’s Point Lighthouse Context triple: [Mattapoisett, hasLandmark, Ned’s Point Lighthouse]
-
A.
Peggy’s Point Lighthouse
Peggy’s Point Lighthouse is an iconic red-and-white coastal beacon in Nova Scotia, Canada, famed as one of the country’s most photographed and visited lighthouses.
-
B.
Wind Point Lighthouse
Wind Point Lighthouse is a historic 19th-century lighthouse on Lake Michigan in Wisconsin, known as one of the oldest and tallest active lighthouses on the Great Lakes.
-
C.
Jones Point Lighthouse
Jones Point Lighthouse is a historic 19th-century river lighthouse located on the Potomac River near Alexandria, Virginia, notable as one of the last remaining riverine lighthouses in the United States.
-
D.
Nash Point Lighthouse
Nash Point Lighthouse is a historic coastal beacon on the Glamorgan coast of South Wales, known for guiding ships in the Bristol Channel and serving as a notable local landmark.
-
E.
Eastern Point Lighthouse
Eastern Point Lighthouse is a historic coastal beacon in Gloucester, Massachusetts, guiding ships at the entrance to Gloucester Harbor on the Atlantic Ocean.
- 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: Ned’s Point Lighthouse Target entity description: Ned’s Point Lighthouse is a historic 19th-century stone lighthouse located on Ned’s Point in Mattapoisett, Massachusetts, overlooking Buzzards Bay.
-
A.
Peggy’s Point Lighthouse
Peggy’s Point Lighthouse is an iconic red-and-white coastal beacon in Nova Scotia, Canada, famed as one of the country’s most photographed and visited lighthouses.
-
B.
Wind Point Lighthouse
Wind Point Lighthouse is a historic 19th-century lighthouse on Lake Michigan in Wisconsin, known as one of the oldest and tallest active lighthouses on the Great Lakes.
-
C.
Jones Point Lighthouse
Jones Point Lighthouse is a historic 19th-century river lighthouse located on the Potomac River near Alexandria, Virginia, notable as one of the last remaining riverine lighthouses in the United States.
-
D.
Nash Point Lighthouse
Nash Point Lighthouse is a historic coastal beacon on the Glamorgan coast of South Wales, known for guiding ships in the Bristol Channel and serving as a notable local landmark.
-
E.
Eastern Point Lighthouse
Eastern Point Lighthouse is a historic coastal beacon in Gloucester, Massachusetts, guiding ships at the entrance to Gloucester Harbor on the Atlantic Ocean.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
historic site
ⓘ
lighthouse ⓘ stone lighthouse ⓘ |
| associatedWaterbody | Buzzards Bay ⓘ |
| automationStatus | automated ⓘ |
| built | 1838 ⓘ |
| category |
Buildings and structures in Plymouth County, Massachusetts
ⓘ
Lighthouses in Massachusetts ⓘ |
| centuryBuilt | 19th century ⓘ |
| constructionMethod | dry stone masonry ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| county | Plymouth County ⓘ |
| currentLightSource | automated beacon ⓘ |
| focalHeight | about 41 feet ⓘ |
| function | guiding vessels in Buzzards Bay ⓘ |
| hasFeature |
gallery
ⓘ
lantern room ⓘ stone tower ⓘ |
| hasUse |
aids to navigation
ⓘ
tourist attraction ⓘ |
| height | about 39 feet ⓘ |
| historicPeriod | 19th century American lighthouse construction ⓘ |
| laterLensType | Fresnel lens ⓘ |
| lightCharacteristic | flashing white every 6 seconds ⓘ |
| locatedIn |
Massachusetts
ⓘ
Mattapoisett, Massachusetts ⓘ Ned’s Point ⓘ Plymouth County, Massachusetts ⓘ
linked to:
Plymouth County
United States ⓘ
linked to:
United States of America
|
| managedBy | United States Coast Guard ⓘ |
| marking |
unpainted stone tower
ⓘ
white lantern ⓘ |
| material | stone ⓘ |
| near | Mattapoisett Harbor ⓘ |
| openToPublic | yes ⓘ |
| originalLensType | reflector system ⓘ |
| overlooks | Buzzards Bay ⓘ |
| ownedBy |
Town of Mattapoisett
ⓘ
linked to:
Town of Mattapoisett, Massachusetts
|
| range | about 13 nautical miles ⓘ |
| region | New England ⓘ |
| shape | conical tower ⓘ |
| situatedIn |
Ned’s Point Lighthouse Reservation
ⓘ
linked to:
Ned’s Point Lighthouse
|
| state | Massachusetts ⓘ |
| terrain | rocky point on Buzzards Bay shoreline ⓘ |
| town | Mattapoisett ⓘ |
| yearDeactivated | 1899 ⓘ |
| yearLit | 1838 ⓘ |
| yearReactivated | 1943 ⓘ |
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: Ned’s Point Lighthouse Description of subject: Ned’s Point Lighthouse is a historic 19th-century stone lighthouse located on Ned’s Point in Mattapoisett, Massachusetts, overlooking Buzzards Bay.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Ned’s Point Lighthouse
linked to: Ned’s Point Lighthouse