Grand Marais Harbor Range Light
E687442
Grand Marais Harbor Range Light is a historic navigational lighthouse in Grand Marais, Michigan, that guides vessels safely into the harbor on Lake Superior.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Grand Marais Harbor Range Light canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7739175 — 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: Grand Marais Harbor Range Light Context triple: [Grand Marais, Michigan, hasLighthouse, Grand Marais Harbor Range Light]
-
A.
Jones Point Lighthouse
Jones Point Lighthouse is a historic 19th-century river lighthouse located on the Potomac River near Alexandria, Virginia, notable as one of the last remaining riverine lighthouses in the United States.
-
B.
Pilot Island Light
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.
-
C.
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.
-
D.
Raspberry Island Light
Raspberry Island Light is a historic lighthouse located on Raspberry Island in Wisconsin’s Apostle Islands, guiding navigation on Lake Superior.
-
E.
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.
- 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: Grand Marais Harbor Range Light Target entity description: Grand Marais Harbor Range Light is a historic navigational lighthouse in Grand Marais, Michigan, that guides vessels safely into the harbor on Lake Superior.
-
A.
Jones Point Lighthouse
Jones Point Lighthouse is a historic 19th-century river lighthouse located on the Potomac River near Alexandria, Virginia, notable as one of the last remaining riverine lighthouses in the United States.
-
B.
Pilot Island Light
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.
-
C.
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.
-
D.
Raspberry Island Light
Raspberry Island Light is a historic lighthouse located on Raspberry Island in Wisconsin’s Apostle Islands, guiding navigation on Lake Superior.
-
E.
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.
- F. None of above. chosen
Statements (36)
| Predicate | Object |
|---|---|
| instanceOf |
lighthouse
ⓘ
navigational aid ⓘ range light ⓘ |
| access | accessible from shore ⓘ |
| associatedWith | Lake Superior maritime history ⓘ |
| bodyOfWater | Lake Superior ⓘ |
| category |
Lighthouses in Michigan
ⓘ
Lighthouses on the Great Lakes ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| function | harbor entrance range light ⓘ |
| harborServed |
Grand Marais Harbor
ⓘ
linked to:
Grand Marais Harbor of Refuge
|
| hasPart |
front range light
ⓘ
rear range light ⓘ |
| heritageStatus | historic lighthouse ⓘ |
| lightCharacteristic | white light ⓘ |
| lightingTechnology | electric light ⓘ |
| locatedIn |
Alger County, Michigan
ⓘ
Grand Marais, Michigan ⓘ Michigan ⓘ |
| locatedInProtectedArea | Pictured Rocks National Lakeshore vicinity ⓘ |
| locatedNear |
Grand Marais breakwater
ⓘ
linked to:
Grand Marais Harbor of Refuge
|
| locatedOn | Lake Superior ⓘ |
| managingOrganization | U.S. Coast Guard Aids to Navigation ⓘ |
| marking | painted structure for daytime visibility ⓘ |
| material | steel ⓘ |
| navigationalSystem | range light alignment system ⓘ |
| operatedBy | United States Coast Guard ⓘ |
| purpose | to guide vessels into Grand Marais Harbor ⓘ |
| region | Upper Peninsula of Michigan ⓘ |
| status | active aid to navigation ⓘ |
| structureType | metal tower ⓘ |
| tourism | local point of interest ⓘ |
| usedFor |
commercial navigation
ⓘ
recreational boating ⓘ |
| view | overlooks Grand Marais Harbor ⓘ |
| waterwayServed | Lake Superior shipping lanes ⓘ |
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: Grand Marais Harbor Range Light Description of subject: Grand Marais Harbor Range Light is a historic navigational lighthouse in Grand Marais, Michigan, that guides vessels safely into the harbor on Lake Superior.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.