Devils Island Light
E126505
Devils Island Light is a historic lighthouse located on Devils Island in Wisconsin’s Apostle Islands, guiding ships through the waters of Lake Superior.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Devils Island Light canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T1035721 — 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: Devils Island Light Context triple: [Apostle Islands, hasLighthouse, Devils Island Light]
-
A.
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.
-
B.
Great Point Light
Great Point Light is a historic lighthouse located at the northern tip of Nantucket Island, Massachusetts, guiding vessels through the surrounding coastal waters.
-
C.
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.
-
D.
Nauset Light
Nauset Light is a historic, red-and-white lighthouse on Cape Cod in Massachusetts, known as an iconic coastal landmark and symbol of the region.
-
E.
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.
- 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: Devils Island Light Target entity description: Devils Island Light is a historic lighthouse located on Devils Island in Wisconsin’s Apostle Islands, guiding ships through the waters of Lake Superior.
-
A.
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.
-
B.
Great Point Light
Great Point Light is a historic lighthouse located at the northern tip of Nantucket Island, Massachusetts, guiding vessels through the surrounding coastal waters.
-
C.
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.
-
D.
Nauset Light
Nauset Light is a historic, red-and-white lighthouse on Cape Cod in Massachusetts, known as an iconic coastal landmark and symbol of the region.
-
E.
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.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
historic site
ⓘ
lighthouse ⓘ |
| access | by boat ⓘ |
| automated | true ⓘ |
| automationYear | 1978 ⓘ |
| category |
Buildings and structures in Ashland County, Wisconsin
ⓘ
Lighthouses in Wisconsin ⓘ Lighthouses on the National Register of Historic Places in Wisconsin ⓘ |
| constructionMaterial | brick ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| county | Ashland County, Wisconsin ⓘ |
| focalHeight |
100 feet
ⓘ
30 meters ⓘ |
| hasFogSignal | true ⓘ |
| hasStructure |
fog signal building
ⓘ
keeper’s quarters ⓘ oil house ⓘ walkway ⓘ |
| height |
25 meters
ⓘ
82 feet ⓘ |
| historicSignificance | aids navigation through Apostle Islands channels ⓘ |
| lanternColor | black ⓘ |
| lightCharacteristic | flashing white ⓘ |
| lightRange | 22 nautical miles ⓘ |
| listedOn | National Register of Historic Places ⓘ |
| location |
Apostle Islands
ⓘ
Devils Island ⓘ Lake Superior ⓘ |
| managedBy |
Apostle Islands
ⓘ
surface form:
Apostle Islands National Lakeshore
National Park Service ⓘ |
| marking | white cylindrical tower with black lantern ⓘ |
| navigationArea | western Lake Superior ⓘ |
| nearestCity | Bayfield, Wisconsin ⓘ |
| NRHPListingYear | 1977 ⓘ |
| NRHPReferenceNumber | 77000145 ⓘ |
| operatedBy | United States Coast Guard ⓘ |
| originalLensType | Third-order Fresnel lens ⓘ |
| ownedBy |
United States government
ⓘ
surface form:
United States federal government
|
| partOf |
Apostle Islands
ⓘ
surface form:
Apostle Islands National Lakeshore
|
| purpose | to guide ships on Lake Superior ⓘ |
| region | Northern Wisconsin ⓘ |
| state | Wisconsin ⓘ |
| towerColor | white ⓘ |
| towerShape | cylindrical tower ⓘ |
| waterbodyServed | Lake Superior ⓘ |
| yearLit | 1901 ⓘ |
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: Devils Island Light Description of subject: Devils Island Light is a historic lighthouse located on Devils Island in Wisconsin’s Apostle Islands, guiding ships through the waters of Lake Superior.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.