Point Bonita Lighthouse
E673493
Point Bonita Lighthouse is a historic 19th-century navigational beacon perched on a rugged cliff at the entrance to San Francisco Bay, known for guiding ships safely through the Golden Gate.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Point Bonita Lighthouse canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7529417 — 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.
Target entity: Point Bonita Lighthouse Context triple: [Marin Headlands, hasPart, Point Bonita Lighthouse]
-
A.
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.
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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.
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C.
Point Fermin Lighthouse
Point Fermin Lighthouse is a historic Victorian-era lighthouse and coastal landmark overlooking the Pacific Ocean in the San Pedro neighborhood of Los Angeles, California.
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D.
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.
-
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.
Target entity: Point Bonita Lighthouse Target entity description: Point Bonita Lighthouse is a historic 19th-century navigational beacon perched on a rugged cliff at the entrance to San Francisco Bay, known for guiding ships safely through the Golden Gate.
-
A.
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.
-
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 Fermin Lighthouse
Point Fermin Lighthouse is a historic Victorian-era lighthouse and coastal landmark overlooking the Pacific Ocean in the San Pedro neighborhood of Los Angeles, California.
-
D.
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.
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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 (48)
| Predicate | Object |
|---|---|
| instanceOf |
historic site
ⓘ
lighthouse ⓘ navigational aid ⓘ |
| access | pedestrian suspension bridge ⓘ |
| category |
Buildings and structures in Marin County, California
ⓘ
Lighthouses in California ⓘ Transportation in the San Francisco Bay Area ⓘ |
| constructionStartDate | 1853 ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| county | Marin County NERFINISHED ⓘ |
| firstLit | 1855 ⓘ |
| function | aids navigation into San Francisco Bay ⓘ |
| hasViewOf |
Golden Gate Bridge
NERFINISHED
ⓘ
Pacific Ocean ⓘ San Francisco Bay NERFINISHED ⓘ |
| heritageDesignation | historic lighthouse ⓘ |
| inception | 1855 ⓘ |
| lightCharacteristic | white flash ⓘ |
| lightRange | approximately 18 nautical miles ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Golden Gate National Recreation Area NERFINISHED ⓘ Marin County, California NERFINISHED ⓘ United States of America ⓘ
surface form:
United States
|
| locatedNear |
Golden Gate
NERFINISHED
ⓘ
entrance to San Francisco Bay ⓘ |
| locatedOn | Point Bonita NERFINISHED ⓘ |
| managedBy | National Park Service ⓘ |
| material |
brick
ⓘ
concrete ⓘ |
| nearbyCity |
San Francisco
NERFINISHED
ⓘ
Sausalito NERFINISHED ⓘ |
| openToPublic | yes ⓘ |
| operator | United States Coast Guard NERFINISHED ⓘ |
| originalLensType | Fresnel lens NERFINISHED ⓘ |
| overlooks | Pacific Ocean ⓘ |
| owner |
United States government
ⓘ
surface form:
United States federal government
|
| partOf | Golden Gate National Recreation Area NERFINISHED ⓘ |
| purpose | to guide ships safely through the Golden Gate ⓘ |
| region | Northern California ⓘ |
| relocated | 1877 ⓘ |
| relocationReason | frequent fog at original site ⓘ |
| significance |
important aid to navigation for ships entering San Francisco Bay
ⓘ
one of the first lighthouses on the U.S. West Coast ⓘ |
| situatedOn | rugged cliff ⓘ |
| state |
California, United States
ⓘ
surface form:
California
|
| touristAttraction | yes ⓘ |
| towerShape | conical tower ⓘ |
| yearCompleted | 1855 ⓘ |
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.
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.
Subject: Point Bonita Lighthouse Description of subject: Point Bonita Lighthouse is a historic 19th-century navigational beacon perched on a rugged cliff at the entrance to San Francisco Bay, known for guiding ships safely through the Golden Gate.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.