Battery Spencer
E669454
Battery Spencer is a historic coastal artillery fortification in the Marin Headlands overlooking the Golden Gate, now a popular viewpoint and tourist site.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Battery Mendell | 1 |
| Battery Spencer canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7529418 — 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: Battery Spencer Context triple: [Marin Headlands, hasPart, Battery Spencer]
-
A.
Battery Wheeler
Battery Wheeler is a coastal artillery battery that formed part of the defensive fortifications at Fort Mills on Corregidor Island in the Philippines.
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B.
The Battery
The Battery is a historic defensive seawall and promenade in Charleston, South Carolina, famed for its antebellum homes and views of Charleston Harbor and Fort Sumter.
-
C.
The Battery
The Battery is a historic waterfront park at the southern tip of Manhattan in New York City, known for its harbor views, ferries to the Statue of Liberty and Ellis Island, and landmark Castle Clinton.
-
D.
Battery Crockett
Battery Crockett was a coastal artillery battery that formed part of the defensive fortifications at Fort Mills on Corregidor Island in the Philippines.
-
E.
Battery Geary
Battery Geary is a coastal artillery battery that formed part of the defensive fortifications at Fort Mills on Corregidor Island in the Philippines.
- 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: Battery Spencer Target entity description: Battery Spencer is a historic coastal artillery fortification in the Marin Headlands overlooking the Golden Gate, now a popular viewpoint and tourist site.
-
A.
Battery Wheeler
Battery Wheeler is a coastal artillery battery that formed part of the defensive fortifications at Fort Mills on Corregidor Island in the Philippines.
-
B.
The Battery
The Battery is a historic waterfront park at the southern tip of Manhattan in New York City, known for its harbor views, ferries to the Statue of Liberty and Ellis Island, and landmark Castle Clinton.
-
C.
The Battery
The Battery is a historic defensive seawall and promenade in Charleston, South Carolina, famed for its antebellum homes and views of Charleston Harbor and Fort Sumter.
-
D.
Battery Crockett
Battery Crockett was a coastal artillery battery that formed part of the defensive fortifications at Fort Mills on Corregidor Island in the Philippines.
-
E.
Battery Geary
Battery Geary is a coastal artillery battery that formed part of the defensive fortifications at Fort Mills on Corregidor Island in the Philippines.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
coastal artillery battery
ⓘ
historic site ⓘ |
| access | by road from Conzelman Road ⓘ |
| armament |
12-inch breech-loading rifles
ⓘ
disappearing guns ⓘ |
| category |
Coastal fortifications in California
ⓘ
Military history of the San Francisco Bay Area ⓘ |
| constructionEndDate | 1897 ⓘ |
| constructionStartDate | 1893 ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| currentUse |
scenic overlook
ⓘ
tourist viewpoint ⓘ |
| elevation | approximately 150 meters above sea level ⓘ |
| era | Endicott Board modernization era ⓘ |
| garrison |
Coast Artillery Corps
ⓘ
linked to:
United States Coast Artillery Corps
|
| hasFunction |
coastal defense
ⓘ
harbor defense ⓘ |
| hasNearbyAttraction |
Golden Gate Bridge Vista Point
ⓘ
Marin Headlands trails ⓘ |
| hasViewOf |
Marin Headlands
ⓘ
Pacific Ocean ⓘ San Francisco skyline ⓘ |
| heritageDesignation | historic coastal defense site ⓘ |
| inception | 1890s ⓘ |
| locatedIn |
California
ⓘ
linked to:
California, United States
Marin County, California ⓘ
linked to:
Marin County
Marin Headlands ⓘ United States ⓘ
linked to:
United States of America
|
| locatedInProtectedArea | Golden Gate National Recreation Area ⓘ |
| locatedOn | north side of the Golden Gate ⓘ |
| militaryBranch | United States Army ⓘ |
| namedAfter | Joseph Spencer ⓘ |
| openToPublic | yes ⓘ |
| operator | National Park Service ⓘ |
| overlooks |
Golden Gate
ⓘ
Golden Gate Bridge ⓘ |
| ownedBy |
United States federal government
ⓘ
linked to:
United States government
|
| partOf |
Endicott Period coastal fortifications
ⓘ
linked to:
Endicott Period coast defenses
Fort Baker ⓘ Harbor Defenses of San Francisco ⓘ |
| significantPeriod |
Spanish–American War era
ⓘ
linked to:
Spanish–American War
early 20th century coastal defense ⓘ |
| status | decommissioned military installation ⓘ |
| touristAttractionIn | San Francisco Bay Area ⓘ |
| touristPopularity | high ⓘ |
| usedFor | defense of San Francisco Bay ⓘ |
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: Battery Spencer Description of subject: Battery Spencer is a historic coastal artillery fortification in the Marin Headlands overlooking the Golden Gate, now a popular viewpoint and tourist site.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Battery Spencer