Egg Rock Light
E744622
Egg Rock Light is a historic lighthouse situated on Egg Rock off the coast of Maine, serving as a navigational aid in the Gulf of Maine.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Egg Rock Light canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8487699 — 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: Egg Rock Light Context triple: [Downeast Maine, contains, Egg Rock Light]
-
A.
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.
-
B.
Nobska Light
Nobska Light is a historic lighthouse on Cape Cod that overlooks Vineyard Sound and serves as a prominent maritime navigational aid and local landmark.
-
C.
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.
-
D.
Long Point Light
Long Point Light is a historic lighthouse marking the entrance to Provincetown Harbor at the tip of Cape Cod, Massachusetts.
-
E.
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.
- 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: Egg Rock Light Target entity description: Egg Rock Light is a historic lighthouse situated on Egg Rock off the coast of Maine, serving as a navigational aid in the Gulf of Maine.
-
A.
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.
-
B.
Nobska Light
Nobska Light is a historic lighthouse on Cape Cod that overlooks Vineyard Sound and serves as a prominent maritime navigational aid and local landmark.
-
C.
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.
-
D.
Long Point Light
Long Point Light is a historic lighthouse marking the entrance to Provincetown Harbor at the tip of Cape Cod, Massachusetts.
-
E.
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.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
lighthouse
ⓘ
navigational aid ⓘ |
| accessibleBy | boat only ⓘ |
| associatedWith | United States Lighthouse Service ⓘ |
| attachedTo | keeper's house ⓘ |
| automated | 1976 ⓘ |
| category |
Buildings and structures in Hancock County, Maine
ⓘ
Lighthouses in Maine ⓘ |
| constructionCompleted | 1875 ⓘ |
| constructionMaterial |
brick
ⓘ
wood ⓘ |
| coordinates | 44.3544°N 68.1372°W ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| focalHeight | 64 feet ⓘ |
| fogSignal | horn ⓘ |
| foundation | granite block foundation ⓘ |
| hasStructure |
fog signal building
ⓘ
keeper's dwelling ⓘ oil house ⓘ |
| heritageStatus | historic lighthouse ⓘ |
| historicUse | guiding coastal shipping ⓘ |
| lightCharacteristic | Flashing white every 5 seconds ⓘ |
| locatedIn | Egg Rock ⓘ |
| locatedInBodyOfWater | Gulf of Maine ⓘ |
| locatedInCounty | Hancock County, Maine ⓘ |
| locatedInState | Maine ⓘ |
| locatedNear |
Bar Harbor, Maine
ⓘ
linked to:
Bar Harbor, Maine, United States
Mount Desert Island ⓘ |
| locatedOn | small rocky island ⓘ |
| managedBy | United States Coast Guard ⓘ |
| marking |
black lantern
ⓘ
red roof ⓘ white tower ⓘ |
| openToPublic | no land access to tower ⓘ |
| originalLensType | Fresnel lens ⓘ |
| ownedBy | United States Coast Guard ⓘ |
| powerSource | solar power ⓘ |
| purpose | aid to navigation in the Gulf of Maine ⓘ |
| range | 16 nautical miles ⓘ |
| region | New England ⓘ |
| servesFor |
navigation around Mount Desert Island
ⓘ
navigation to Bar Harbor ⓘ |
| towerHeight | 40 feet ⓘ |
| towerShape | square tower ⓘ |
| visibleFrom |
Acadia National Park waters
ⓘ
Bar Harbor ⓘ |
| yearLit | 1875 ⓘ |
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: Egg Rock Light Description of subject: Egg Rock Light is a historic lighthouse situated on Egg Rock off the coast of Maine, serving as a navigational aid in the Gulf of Maine.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.