West Chop Lighthouse
E198507
West Chop Lighthouse is a historic navigational beacon located on the West Chop headland in Vineyard Haven, Martha’s Vineyard, Massachusetts.
All labels observed (1)
| Label | Occurrences |
|---|---|
| West Chop Lighthouse canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1584938 — 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: West Chop Lighthouse Context triple: [West Chop, hasStructure, West Chop Lighthouse]
-
A.
Chatham Lighthouse
Chatham Lighthouse is a historic coastal beacon on Cape Cod in Massachusetts, renowned for guiding ships through the treacherous waters off Chatham.
-
B.
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.
-
C.
Round Island Lighthouse
Round Island Lighthouse is a historic red-and-white beacon located on Round Island in Michigan, guiding ships through the Straits of Mackinac in the Great Lakes.
-
D.
Brant Point Light
Brant Point Light is a historic lighthouse on Nantucket Island, Massachusetts, guiding vessels into Nantucket Harbor and known as one of the oldest lighthouse sites in the United States.
-
E.
Sankaty Head Light
Sankaty Head Light is a historic lighthouse on the eastern shore of Nantucket, Massachusetts, known for guiding ships along the treacherous waters off the island since the mid-19th century.
- 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: West Chop Lighthouse Target entity description: West Chop Lighthouse is a historic navigational beacon located on the West Chop headland in Vineyard Haven, Martha’s Vineyard, Massachusetts.
-
A.
Chatham Lighthouse
Chatham Lighthouse is a historic coastal beacon on Cape Cod in Massachusetts, renowned for guiding ships through the treacherous waters off Chatham.
-
B.
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.
-
C.
Round Island Lighthouse
Round Island Lighthouse is a historic red-and-white beacon located on Round Island in Michigan, guiding ships through the Straits of Mackinac in the Great Lakes.
-
D.
Brant Point Light
Brant Point Light is a historic lighthouse on Nantucket Island, Massachusetts, guiding vessels into Nantucket Harbor and known as one of the oldest lighthouse sites in the United States.
-
E.
Sankaty Head Light
Sankaty Head Light is a historic lighthouse on the eastern shore of Nantucket, Massachusetts, known for guiding ships along the treacherous waters off the island since the mid-19th century.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
historic place
ⓘ
lighthouse ⓘ navigational aid ⓘ |
| access | not generally open to the public ⓘ |
| associatedWith | United States Coast Guard Station Menemsha ⓘ |
| automationStatus | automated ⓘ |
| category |
Buildings and structures in Dukes County, Massachusetts
ⓘ
Lighthouses in Massachusetts ⓘ Tourist attractions in Dukes County, Massachusetts ⓘ Transportation in Dukes County, Massachusetts ⓘ |
| constructionMaterial | brick ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| county |
Dukes County
ⓘ
linked to:
Dukes County, Massachusetts
|
| function | guides vessels entering Vineyard Haven Harbor ⓘ |
| harbor | Vineyard Haven Harbor ⓘ |
| hasBalcony | yes ⓘ |
| hasFogSignal | yes ⓘ |
| hasLantern | yes ⓘ |
| heritageStatus | listed on the National Register of Historic Places ⓘ |
| isOnHeadland | West Chop headland ⓘ |
| isPartOf | navigational system of Vineyard Sound ⓘ |
| lightCharacteristic | flashing white light ⓘ |
| locatedIn |
Dukes County, Massachusetts
ⓘ
Martha’s Vineyard ⓘ
linked to:
Martha's Vineyard
Massachusetts ⓘ Tisbury, Massachusetts ⓘ United States ⓘ
linked to:
United States of America
Vineyard Haven ⓘ West Chop ⓘ |
| managingAgent | United States Coast Guard ⓘ |
| marking | white tower ⓘ |
| nearIsland |
Martha’s Vineyard
ⓘ
linked to:
Martha's Vineyard
|
| nearSettlement | Vineyard Haven ⓘ |
| NRHPType | historic district contributing property ⓘ |
| originalLighting | oil lamp ⓘ |
| owner | United States Coast Guard ⓘ |
| powerSource | electric ⓘ |
| purpose | to aid navigation in Vineyard Sound ⓘ |
| region | New England ⓘ |
| relatedLighthouse |
East Chop Lighthouse
ⓘ
Edgartown Harbor Light ⓘ
linked to:
Edgartown Light
Gay Head Lighthouse ⓘ
linked to:
Gay Head Light
|
| state | Massachusetts ⓘ |
| towerShape | cylindrical tower with balcony and lantern ⓘ |
| town |
Tisbury
ⓘ
linked to:
Tisbury, Massachusetts
|
| visibilityFromSea | visible from Vineyard Sound ⓘ |
| waterBody |
Atlantic Ocean
ⓘ
Vineyard Sound ⓘ |
| yearFirstLit | 1817 ⓘ |
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: West Chop Lighthouse Description of subject: West Chop Lighthouse is a historic navigational beacon located on the West Chop headland in Vineyard Haven, Martha’s Vineyard, Massachusetts.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
West Chop, Martha's Vineyard, Massachusetts, United States