Cape Mendocino Lighthouse
E68160
Cape Mendocino Lighthouse is a historic coastal beacon on California’s rugged north coast that once guided ships navigating the hazardous waters off Cape Mendocino.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Cape Mendocino Lighthouse canonical | 1 |
| Cape Mendocino Lighthouse (relocated) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T545388 — 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: Cape Mendocino Lighthouse Context triple: [Cape Mendocino, hasStructure, Cape Mendocino Lighthouse]
-
A.
Yaquina Bay Lighthouse
Yaquina Bay Lighthouse is a historic 19th-century coastal lighthouse in Newport, Oregon, notable for being one of the oldest standing structures on the Oregon coast and a popular tourist attraction.
-
B.
Boca Chita Lighthouse
Boca Chita Lighthouse is a small, historic ornamental lighthouse located on Boca Chita Key in Biscayne National Park, Florida, known as a picturesque landmark rather than an active navigational aid.
-
C.
Point Sur Lighthouse
Point Sur Lighthouse is a historic 19th-century light station perched on a volcanic rock along California’s Big Sur coast, guiding ships along the rugged Pacific shoreline.
-
D.
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.
-
E.
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.
- 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: Cape Mendocino Lighthouse Target entity description: Cape Mendocino Lighthouse is a historic coastal beacon on California’s rugged north coast that once guided ships navigating the hazardous waters off Cape Mendocino.
-
A.
Yaquina Bay Lighthouse
Yaquina Bay Lighthouse is a historic 19th-century coastal lighthouse in Newport, Oregon, notable for being one of the oldest standing structures on the Oregon coast and a popular tourist attraction.
-
B.
Boca Chita Lighthouse
Boca Chita Lighthouse is a small, historic ornamental lighthouse located on Boca Chita Key in Biscayne National Park, Florida, known as a picturesque landmark rather than an active navigational aid.
-
C.
Point Sur Lighthouse
Point Sur Lighthouse is a historic 19th-century light station perched on a volcanic rock along California’s Big Sur coast, guiding ships along the rugged Pacific shoreline.
-
D.
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.
-
E.
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.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
historic site
ⓘ
lighthouse ⓘ |
| architecturalType | lighthouse tower ⓘ |
| associatedWith |
United States Coast Guard
ⓘ
maritime navigation in Northern California ⓘ |
| category |
Buildings and structures in Humboldt County, California
ⓘ
Historic sites in California ⓘ Lighthouses in California ⓘ Transportation buildings and structures in Humboldt County, California ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| function | coastal beacon ⓘ |
| hasEnvironment |
foggy coastal climate
ⓘ
high-wind conditions ⓘ rough seas ⓘ |
| hasNavigationRole |
coastal light
ⓘ
warning light ⓘ |
| hasSignificance | important for shipping routes along the Pacific coast of Northern California ⓘ |
| hasViewOf |
North Coast of California
ⓘ
surface form:
California North Coast
Pacific Ocean ⓘ |
| heritageStatus | historic lighthouse ⓘ |
| locatedByBodyOfWater | Pacific Ocean ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Humboldt County ⓘ
surface form:
Humboldt County, California
|
| locatedInGeographicFeature |
Cape Mendocino
ⓘ
surface form:
Cape Mendocino area
|
| locatedInRegion |
North Coast of California
ⓘ
surface form:
California North Coast
Northern California ⓘ |
| locatedInTimeZone | Pacific Time Zone ⓘ |
| locatedNear |
Eel River Basin
ⓘ
surface form:
Eel River Valley
Petrolia, California ⓘ |
| locatedOn |
Cape Mendocino
ⓘ
Pacific coast ⓘ |
| locatedOnCoastOf |
California, United States
ⓘ
surface form:
California
|
| locatedOnCoastType |
rocky coast
ⓘ
rugged coast ⓘ |
| notableFor |
guiding maritime traffic off Cape Mendocino
ⓘ
serving one of the most hazardous stretches of California coast ⓘ |
| partOf |
United States Coast Guard Aids to Navigation Team
ⓘ
surface form:
United States aids to navigation system
|
| purpose |
aid to navigation
ⓘ
guiding ships ⓘ warning of hazardous coastal waters ⓘ |
| riskContext |
hazardous waters off Cape Mendocino
ⓘ
shipwreck-prone area ⓘ |
| terrainContext |
remote coastline
ⓘ
steep coastal bluffs ⓘ |
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: Cape Mendocino Lighthouse Description of subject: Cape Mendocino Lighthouse is a historic coastal beacon on California’s rugged north coast that once guided ships navigating the hazardous waters off Cape Mendocino.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Cape Mendocino Lighthouse (relocated)