Forty Mile Point Lighthouse
E888760
Forty Mile Point Lighthouse is a historic Great Lakes lighthouse on the shore of Lake Huron in Michigan, known for guiding ships along a hazardous stretch of coastline and now serving as a preserved maritime heritage site.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Forty Mile Point Lighthouse canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10850377 — 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: Forty Mile Point Lighthouse Context triple: [Presque Isle County, hasLandmark, Forty Mile Point Lighthouse]
-
A.
McGulpin Point Lighthouse
McGulpin Point Lighthouse is a historic 19th-century lighthouse on the Straits of Mackinac in northern Michigan, preserved today as a heritage site and museum.
-
B.
Mile Rock Lighthouse
Mile Rock Lighthouse is an offshore navigational beacon located at the entrance to San Francisco Bay, known for warning ships away from the treacherous Mile Rocks near Lands End.
-
C.
Neist Point Lighthouse
Neist Point Lighthouse is a remote, early 20th-century Scottish lighthouse perched dramatically on the westernmost tip of the Isle of Skye, guiding ships through the waters of the Inner Hebrides.
-
D.
Amphitrite Point Lighthouse
Amphitrite Point Lighthouse is a coastal beacon on Vancouver Island’s rugged west coast, known for its scenic ocean views and storm watching near the town of Ucluelet, British Columbia.
-
E.
Wind Point Lighthouse
Wind Point Lighthouse is a historic 19th-century lighthouse on Lake Michigan in Wisconsin, known as one of the oldest and tallest active lighthouses on the Great Lakes.
- 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: Forty Mile Point Lighthouse Target entity description: Forty Mile Point Lighthouse is a historic Great Lakes lighthouse on the shore of Lake Huron in Michigan, known for guiding ships along a hazardous stretch of coastline and now serving as a preserved maritime heritage site.
-
A.
McGulpin Point Lighthouse
McGulpin Point Lighthouse is a historic 19th-century lighthouse on the Straits of Mackinac in northern Michigan, preserved today as a heritage site and museum.
-
B.
Mile Rock Lighthouse
Mile Rock Lighthouse is an offshore navigational beacon located at the entrance to San Francisco Bay, known for warning ships away from the treacherous Mile Rocks near Lands End.
-
C.
Neist Point Lighthouse
Neist Point Lighthouse is a remote, early 20th-century Scottish lighthouse perched dramatically on the westernmost tip of the Isle of Skye, guiding ships through the waters of the Inner Hebrides.
-
D.
Amphitrite Point Lighthouse
Amphitrite Point Lighthouse is a coastal beacon on Vancouver Island’s rugged west coast, known for its scenic ocean views and storm watching near the town of Ucluelet, British Columbia.
-
E.
Wind Point Lighthouse
Wind Point Lighthouse is a historic 19th-century lighthouse on Lake Michigan in Wisconsin, known as one of the oldest and tallest active lighthouses on the Great Lakes.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
historic site
ⓘ
lighthouse ⓘ maritime navigation aid ⓘ |
| associatedWith |
Great Lakes shipping
ⓘ
maritime safety ⓘ |
| attachedTo | keeper's dwelling ⓘ |
| bodyOfWater | Lake Huron NERFINISHED ⓘ |
| category |
Lighthouses in Michigan
ⓘ
Lighthouses on the Great Lakes ⓘ Maritime museums in Michigan ⓘ |
| constructionMaterial | brick ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| county | Presque Isle County NERFINISHED ⓘ |
| currentUse |
museum
ⓘ
tourist attraction ⓘ |
| designedBy | U.S. Lighthouse Board engineers NERFINISHED ⓘ |
| distanceFromRogersCity | approximately 7 miles northwest GENERATED ⓘ |
| function | aid to navigation ⓘ |
| hasFeature |
fog signal building
ⓘ
fresnel lens ⓘ keeper's quarters ⓘ museum exhibits ⓘ |
| heritageStatus |
historic Great Lakes lighthouse
ⓘ
preserved maritime heritage site ⓘ |
| lightCharacteristic | flashing white light ⓘ |
| locatedIn |
Michigan
NERFINISHED
ⓘ
Rogers Township, Presque Isle County, Michigan NERFINISHED ⓘ United States of America ⓘ
surface form:
United States
|
| locatedNear | Rogers City, Michigan NERFINISHED ⓘ |
| locatedOn | shore of Lake Huron ⓘ |
| managingOrganization | Forty Mile Point Lighthouse Society NERFINISHED ⓘ |
| marking | white tower with red roof ⓘ |
| nearbyWreck | Joseph S. Fay shipwreck remains ⓘ |
| openToPublic | true ⓘ |
| operatedBy |
U.S. Lighthouse Service
NERFINISHED
ⓘ
United States Coast Guard NERFINISHED ⓘ |
| ownership | Presque Isle County NERFINISHED ⓘ |
| preservationStatus | restored ⓘ |
| purpose | to guide ships along a hazardous stretch of Lake Huron coastline ⓘ |
| region | Great Lakes NERFINISHED ⓘ |
| significance |
example of late 19th-century Great Lakes lighthouse architecture
ⓘ
important aid to navigation on Lake Huron ⓘ |
| state |
Michigan (most of state)
ⓘ
surface form:
Michigan
|
| tourismType | heritage tourism ⓘ |
| towerShape | square tower ⓘ |
| yearEstablished | 1897 ⓘ |
| yearLit | 1897 ⓘ |
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: Forty Mile Point Lighthouse Description of subject: Forty Mile Point Lighthouse is a historic Great Lakes lighthouse on the shore of Lake Huron in Michigan, known for guiding ships along a hazardous stretch of coastline and now serving as a preserved maritime heritage site.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.