Robbins Reef Lighthouse
E141577
Robbins Reef Lighthouse is a historic offshore beacon in New York Harbor that has guided ships since the 19th century and is famed for its distinctive “sparkplug” design and the story of its longtime keeper, Kate Walker.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Robbins Reef Lighthouse canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T1091907 — 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: Robbins Reef Lighthouse Context triple: [Robbins Reef, hasPart, Robbins Reef Lighthouse]
-
A.
Raspberry Island Light
Raspberry Island Light is a historic lighthouse located on Raspberry Island in Wisconsin’s Apostle Islands, guiding navigation on Lake Superior.
-
B.
South Manitou Island Lighthouse
South Manitou Island Lighthouse is a historic navigational beacon on South Manitou Island in Lake Michigan, known for guiding ships through the Manitou Passage and for its preserved 19th-century architecture.
-
C.
Baron Bliss Lighthouse
Baron Bliss Lighthouse is a prominent coastal beacon and memorial in Belize, honoring the English benefactor Baron Bliss and serving as a notable historic symbol of Belize City.
-
D.
Ten Pound Island Light
Ten Pound Island Light is a historic lighthouse located on Ten Pound Island in Gloucester Harbor, Massachusetts, that once guided maritime traffic into the busy fishing port.
-
E.
Sand Island Light
Sand Island Light is a historic lighthouse located on Sand Island in Lake Superior, known for guiding ships through the Apostle Islands region of Wisconsin.
- 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: Robbins Reef Lighthouse Target entity description: Robbins Reef Lighthouse is a historic offshore beacon in New York Harbor that has guided ships since the 19th century and is famed for its distinctive “sparkplug” design and the story of its longtime keeper, Kate Walker.
-
A.
Raspberry Island Light
Raspberry Island Light is a historic lighthouse located on Raspberry Island in Wisconsin’s Apostle Islands, guiding navigation on Lake Superior.
-
B.
South Manitou Island Lighthouse
South Manitou Island Lighthouse is a historic navigational beacon on South Manitou Island in Lake Michigan, known for guiding ships through the Manitou Passage and for its preserved 19th-century architecture.
-
C.
Baron Bliss Lighthouse
Baron Bliss Lighthouse is a prominent coastal beacon and memorial in Belize, honoring the English benefactor Baron Bliss and serving as a notable historic symbol of Belize City.
-
D.
Ten Pound Island Light
Ten Pound Island Light is a historic lighthouse located on Ten Pound Island in Gloucester Harbor, Massachusetts, that once guided maritime traffic into the busy fishing port.
-
E.
Sand Island Light
Sand Island Light is a historic lighthouse located on Sand Island in Lake Superior, known for guiding ships through the Apostle Islands region of Wisconsin.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
historic place
ⓘ
lighthouse ⓘ sparkplug lighthouse ⓘ |
| architecturalStyle | sparkplug lighthouse design ⓘ |
| automated | 1966 ⓘ |
| category |
Historic maritime structures in New York
ⓘ
Lighthouses in New York Harbor ⓘ Offshore lighthouses in the United States ⓘ |
| constructionCompleted | 1883 ⓘ |
| constructionMaterial | cast iron ⓘ |
| coordinates | 40.656°N 74.064°W ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| era | 19th century ⓘ |
| focalHeight | 54 feet ⓘ |
| foundation | caisson ⓘ |
| function | aid to navigation ⓘ |
| hasFeature | attached keeper’s quarters within tower ⓘ |
| height | 46 feet ⓘ |
| heritageStatus | listed on the National Register of Historic Places ⓘ |
| historicKeeper | Kate Walker ⓘ |
| lanternColor | black ⓘ |
| laterManagingOrganization | United States Lighthouse Service ⓘ |
| laterPowerSource | electric light ⓘ |
| lightCharacteristic | flashing white every 6 seconds ⓘ |
| locatedInWaterBody | Upper New York Bay ⓘ |
| locatedNear |
Bayonne, New Jersey
ⓘ
Kill Van Kull ⓘ |
| locatedOff | Staten Island ⓘ |
| location | New York Harbor ⓘ |
| managedBy | United States Coast Guard ⓘ |
| marking | white tower with brown band and black lantern ⓘ |
| nearestBorough | Staten Island ⓘ |
| nearestCity | New York City ⓘ |
| notableFor |
longtime keeper Kate Walker
ⓘ
sparkplug design ⓘ |
| NRHPListingReason | maritime navigation history significance ⓘ |
| NRHPType | structure ⓘ |
| originalLens | fourth-order Fresnel lens ⓘ |
| originalManagingOrganization | United States Lighthouse Board ⓘ |
| ownership |
Bayonne, New Jersey
ⓘ
surface form:
City of Bayonne (after federal excessing)
|
| powerSource | originally oil lamp ⓘ |
| precededBy | earlier lightship station in the area ⓘ |
| purpose | to guide ships in New York Harbor ⓘ |
| range | 12 nautical miles ⓘ |
| state | New York ⓘ |
| towerColor | white with brown band ⓘ |
| towerShape | cylindrical ⓘ |
| yearLit | 1883 ⓘ |
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: Robbins Reef Lighthouse Description of subject: Robbins Reef Lighthouse is a historic offshore beacon in New York Harbor that has guided ships since the 19th century and is famed for its distinctive “sparkplug” design and the story of its longtime keeper, Kate Walker.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.