Pilot Island Light
E388638
Pilot Island Light is a historic lighthouse located on Pilot Island off the tip of Wisconsin’s Door Peninsula, long used to guide ships through the treacherous waters of Lake Michigan near Death’s Door passage.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Pilot Island Light canonical | 4 |
| Rock Island Light | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3667251 — 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: Pilot Island Light Context triple: [Door County, contains, Pilot Island Light]
-
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.
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.
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C.
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.
-
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.
Mission Point Light
Mission Point Light is a historic lighthouse located at the tip of Old Mission Peninsula in Grand Traverse Bay, Michigan, known for its picturesque setting and 19th-century architecture.
- 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: Pilot Island Light Target entity description: Pilot Island Light is a historic lighthouse located on Pilot Island off the tip of Wisconsin’s Door Peninsula, long used to guide ships through the treacherous waters of Lake Michigan near Death’s Door passage.
-
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.
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.
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.
-
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.
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E.
Mission Point Light
Mission Point Light is a historic lighthouse located at the tip of Old Mission Peninsula in Grand Traverse Bay, Michigan, known for its picturesque setting and 19th-century architecture.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
historic lighthouse
ⓘ
lighthouse ⓘ |
| associatedWith |
maritime safety in Death’s Door
ⓘ
shipping traffic around Door Peninsula ⓘ |
| category |
Lighthouses in Wisconsin
ⓘ
Lighthouses on the Great Lakes ⓘ Maritime navigation aids of the United States ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| environment | exposed offshore location ⓘ |
| function | warns vessels of dangerous passage at Death’s Door ⓘ |
| hasAccess | by boat only ⓘ |
| hasNameOrigin | named after Pilot Island ⓘ |
| heritageStatus | historic structure ⓘ |
| locatedIn |
Door County
ⓘ
surface form:
Door County, Wisconsin
|
| locatedInBayOrGulf | near the entrance to Green Bay ⓘ |
| locatedInBodyOfWater |
Great Lakes
ⓘ
Lake Michigan ⓘ |
| locatedInRegion | Great Lakes region ⓘ |
| locatedNear |
Death’s Door
ⓘ
surface form:
Death’s Door passage
tip of the Door Peninsula ⓘ |
| locatedOn | Pilot Island NERFINISHED ⓘ |
| navigationalRole | aids navigation in northern Lake Michigan ⓘ |
| nearbyHazard |
shoals and strong currents
ⓘ
treacherous waters of Death’s Door ⓘ |
| purpose | to guide ships through treacherous waters near Death’s Door passage ⓘ |
| significance | important aid to navigation at the entrance to Green Bay ⓘ |
| state | Wisconsin ⓘ |
| subjectTo | severe weather conditions on Lake Michigan ⓘ |
| surroundedBy |
Lake Michigan
ⓘ
surface form:
Lake Michigan waters
|
| terrain | small low-lying island ⓘ |
| usedFor | maritime navigation ⓘ |
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: Pilot Island Light Description of subject: Pilot Island Light is a historic lighthouse located on Pilot Island off the tip of Wisconsin’s Door Peninsula, long used to guide ships through the treacherous waters of Lake Michigan near Death’s Door passage.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Porte des Morts
subject surface form:
Door Peninsula
subject surface form:
Porte des Morts Passage
subject surface form:
Porte des Morts Passage
this entity surface form:
Rock Island Light