San Clemente Island Light
E663850
San Clemente Island Light is a historic navigational lighthouse located on San Clemente Island off the coast of Southern California, guiding maritime traffic in the Pacific Ocean.
All labels observed (1)
| Label | Occurrences |
|---|---|
| San Clemente Island Light canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7413915 — 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: San Clemente Island Light Context triple: [San Clemente Island, hasLighthouse, San Clemente Island Light]
-
A.
Anacapa Island Lighthouse
Anacapa Island Lighthouse is a historic navigational beacon on Anacapa Island off the coast of California, guiding ships through the Santa Barbara Channel.
-
B.
Santa Ana lighthouse
Santa Ana lighthouse is a prominent hilltop beacon and tourist attraction in Guayaquil, Ecuador, offering panoramic views of the city and the Guayas River.
-
C.
Heceta Head Lighthouse
Heceta Head Lighthouse is a historic, highly photographed beacon perched on a scenic cliff along the central Oregon Coast, renowned for its powerful light and picturesque setting.
-
D.
Point Pinos Lighthouse
Point Pinos Lighthouse is a historic, still-operating 19th-century lighthouse on the Monterey Peninsula, known as the oldest continuously active lighthouse on the U.S. West Coast.
-
E.
Cape Blanco Lighthouse
Cape Blanco Lighthouse is a historic, still-operating beacon perched on the westernmost point of Oregon, guiding ships along the rugged Pacific coastline.
- 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: San Clemente Island Light Target entity description: San Clemente Island Light is a historic navigational lighthouse located on San Clemente Island off the coast of Southern California, guiding maritime traffic in the Pacific Ocean.
-
A.
Anacapa Island Lighthouse
Anacapa Island Lighthouse is a historic navigational beacon on Anacapa Island off the coast of California, guiding ships through the Santa Barbara Channel.
-
B.
Santa Ana lighthouse
Santa Ana lighthouse is a prominent hilltop beacon and tourist attraction in Guayaquil, Ecuador, offering panoramic views of the city and the Guayas River.
-
C.
Heceta Head Lighthouse
Heceta Head Lighthouse is a historic, highly photographed beacon perched on a scenic cliff along the central Oregon Coast, renowned for its powerful light and picturesque setting.
-
D.
Point Pinos Lighthouse
Point Pinos Lighthouse is a historic, still-operating 19th-century lighthouse on the Monterey Peninsula, known as the oldest continuously active lighthouse on the U.S. West Coast.
-
E.
Cape Blanco Lighthouse
Cape Blanco Lighthouse is a historic, still-operating beacon perched on the westernmost point of Oregon, guiding ships along the rugged Pacific coastline.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
historic site
ⓘ
lighthouse ⓘ navigational aid ⓘ |
| access | restricted ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| function |
aids navigation in the Pacific Ocean
ⓘ
guides maritime traffic ⓘ |
| hasLight | yes ⓘ |
| heritageStatus | historic lighthouse ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Los Angeles County NERFINISHED ⓘ Pacific Ocean ⓘ San Clemente Island NERFINISHED ⓘ |
| locatedOffCoastOf | Southern California NERFINISHED ⓘ |
| locatedOffShoreFrom |
California coast
ⓘ
San Diego region NERFINISHED ⓘ |
| locatedOnIsland | San Clemente Island NERFINISHED ⓘ |
| managingAgent | United States Coast Guard NERFINISHED ⓘ |
| navigationalPurpose |
marks approach to San Clemente Island
ⓘ
warns ships of coastline ⓘ |
| nearbyWaterBody | Pacific Ocean NERFINISHED ⓘ |
| operatedBy | United States Coast Guard NERFINISHED ⓘ |
| partOf | United States aids to navigation system ⓘ |
| regionServed | Pacific Ocean shipping lanes ⓘ |
| structureType | light station ⓘ |
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: San Clemente Island Light Description of subject: San Clemente Island Light is a historic navigational lighthouse located on San Clemente Island off the coast of Southern California, guiding maritime traffic in the Pacific Ocean.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.