Sandy Hook Lighthouse
E276303
Sandy Hook Lighthouse is the oldest surviving lighthouse in the United States, located at the tip of New Jersey’s Sandy Hook peninsula and historically guiding ships into New York Harbor.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Sandy Hook Lighthouse canonical | 3 |
| Sandy Hook Light | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2453000 — 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: Sandy Hook Lighthouse Context triple: [Gateway National Recreation Area, contains, Sandy Hook Lighthouse]
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
West Chop Lighthouse
West Chop Lighthouse is a historic navigational beacon located on the West Chop headland in Vineyard Haven, Martha’s Vineyard, Massachusetts.
-
E.
Prospect Point Lighthouse
Prospect Point Lighthouse is a historic coastal beacon located at the northern tip of Vancouver’s Stanley Park, overlooking the entrance to Burrard Inlet.
- 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: Sandy Hook Lighthouse Target entity description: Sandy Hook Lighthouse is the oldest surviving lighthouse in the United States, located at the tip of New Jersey’s Sandy Hook peninsula and historically guiding ships into New York Harbor.
-
A.
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.
-
B.
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.
-
C.
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.
-
D.
West Chop Lighthouse
West Chop Lighthouse is a historic navigational beacon located on the West Chop headland in Vineyard Haven, Martha’s Vineyard, Massachusetts.
-
E.
Prospect Point Lighthouse
Prospect Point Lighthouse is a historic coastal beacon located at the northern tip of Vancouver’s Stanley Park, overlooking the entrance to Burrard Inlet.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
historic structure
ⓘ
lighthouse ⓘ tourist attraction ⓘ |
| architect | Isaac Conro ⓘ |
| automated | 1962 ⓘ |
| builtFor | Province of New York ⓘ |
| completionDate | 1764 ⓘ |
| constructionStartDate | 1764 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| damagedInEvent | American Revolutionary War ⓘ |
| firstLit | 1764 ⓘ |
| focalHeight | 85 feet ⓘ |
| function | guides ships into New York Harbor ⓘ |
| fundedBy | New York merchants ⓘ |
| hasFeature |
attached keeper’s house
ⓘ
spiral staircase ⓘ |
| heritageDesignation |
National Historic Landmark
ⓘ
National Register of Historic Places ⓘ
surface form:
National Register of Historic Places listing
|
| inception | 1764 ⓘ |
| lensType | third-order Fresnel lens ⓘ |
| lightCharacteristic | fixed white ⓘ |
| lightRange | 19 nautical miles ⓘ |
| locatedAtCoordinate | 40.465°N 74.009°W ⓘ |
| locatedIn |
Atlantic coast of the United States
ⓘ
Fort Hancock ⓘ Gateway National Recreation Area ⓘ Monmouth County, New Jersey NERFINISHED ⓘ New Jersey, United States ⓘ
surface form:
New Jersey
New York Harbor ⓘ
surface form:
New York Harbor area
Sandy Hook ⓘ Sandy Hook Bay ⓘ
surface form:
Sandy Hook peninsula
|
| managedBy | National Park Service ⓘ |
| materialUsed |
brick
ⓘ
rubblestone ⓘ |
| notableFor |
continuous operation since the 18th century
ⓘ
oldest surviving lighthouse in the United States ⓘ |
| NRHPReferenceNumber | 66000471 ⓘ |
| offers | guided tours ⓘ |
| openToPublic | yes ⓘ |
| operatedBy | United States Coast Guard ⓘ |
| ownedBy | United States government ⓘ |
| partOf |
Sandy Hook Proving Ground (historic)
ⓘ
surface form:
Fort Hancock and Sandy Hook Proving Ground Historic District
|
| shape | octagonal tower ⓘ |
| status | active lighthouse ⓘ |
| surroundedBy | Fort Hancock military installations ⓘ |
| towerHeight | 103 feet ⓘ |
| usedBy | British forces during the American Revolutionary War ⓘ |
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: Sandy Hook Lighthouse Description of subject: Sandy Hook Lighthouse is the oldest surviving lighthouse in the United States, located at the tip of New Jersey’s Sandy Hook peninsula and historically guiding ships into New York Harbor.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Sandy Hook Light