Fort MacArthur
E678017
Fort MacArthur is a former U.S. Army coastal defense installation in San Pedro, Los Angeles, that historically protected Los Angeles Harbor and now serves various military, residential, and community uses.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Fort MacArthur canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T7625032 — 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: Fort MacArthur Context triple: [Angels Gate Park, adjacentTo, Fort MacArthur]
-
A.
Fort Eisenhower
Fort Eisenhower is a United States Army installation near Augusta, Georgia, known for housing the Army Cyber Center of Excellence and serving as a major hub for cyber and signal training.
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B.
Fort Shafter
Fort Shafter is a major U.S. Army installation in Honolulu, Hawaii, serving as a key headquarters and command center for Army operations in the Pacific region.
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C.
Fort Richardson
Fort Richardson was a former United States Army post near Anchorage, Alaska, that later became part of Joint Base Elmendorf–Richardson.
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D.
Fort Cronkhite
Fort Cronkhite is a former World War II-era coastal defense fortification in Marin County, California, now preserved as part of the Golden Gate National Recreation Area and used for recreation and historic interpretation.
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E.
Fort Jay
Fort Jay is a historic coastal fortification on Governors Island in New York Harbor, notable for its star-shaped design and long military service from the early 19th century through the Cold War.
- 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: Fort MacArthur Target entity description: Fort MacArthur is a former U.S. Army coastal defense installation in San Pedro, Los Angeles, that historically protected Los Angeles Harbor and now serves various military, residential, and community uses.
-
A.
Fort Eisenhower
Fort Eisenhower is a United States Army installation near Augusta, Georgia, known for housing the Army Cyber Center of Excellence and serving as a major hub for cyber and signal training.
-
B.
Fort Shafter
Fort Shafter is a major U.S. Army installation in Honolulu, Hawaii, serving as a key headquarters and command center for Army operations in the Pacific region.
-
C.
Fort Richardson
Fort Richardson was a former United States Army post near Anchorage, Alaska, that later became part of Joint Base Elmendorf–Richardson.
-
D.
Fort Cronkhite
Fort Cronkhite is a former World War II-era coastal defense fortification in Marin County, California, now preserved as part of the Golden Gate National Recreation Area and used for recreation and historic interpretation.
-
E.
Fort Jay
Fort Jay is a historic coastal fortification on Governors Island in New York Harbor, notable for its star-shaped design and long military service from the early 19th century through the Cold War.
- F. None of above. chosen
Statements (58)
| Predicate | Object |
|---|---|
| instanceOf |
coastal defense installation
ⓘ
former United States Army fort ⓘ |
| controlledBy | United States Army NERFINISHED ⓘ |
| country | United States of America ⓘ |
| currentUse |
administrative offices
ⓘ
community center ⓘ military housing ⓘ museum site ⓘ recreational facilities ⓘ |
| garrison | United States Army Coast Artillery Corps NERFINISHED ⓘ |
| hasFunction |
administrative support facility
ⓘ
anti-aircraft defense site ⓘ coastal artillery base ⓘ community recreation area ⓘ harbor defense ⓘ military housing area ⓘ |
| hasMuseum | Fort MacArthur Museum NERFINISHED ⓘ |
| hasPart |
Battery 240
NERFINISHED
ⓘ
Battery 241 NERFINISHED ⓘ Battery Barlow-Saxton NERFINISHED ⓘ Battery Leary-Merriam NERFINISHED ⓘ Battery Osgood-Farley NERFINISHED ⓘ Lower Reservation NERFINISHED ⓘ Middle Reservation NERFINISHED ⓘ Nike missile facilities ⓘ Upper Reservation NERFINISHED ⓘ |
| heritageDesignation |
Los Angeles Historic-Cultural Monument
NERFINISHED
ⓘ
historic military site ⓘ |
| locatedIn |
California, United States
ⓘ
surface form:
California
Los Angeles County ⓘ
surface form:
Los Angeles County, California
Los Angeles Harbor area NERFINISHED ⓘ Los Angeles, California NERFINISHED ⓘ San Pedro, Los Angeles NERFINISHED ⓘ |
| locatedNear |
Angels Gate
NERFINISHED
ⓘ
Cabrillo Beach NERFINISHED ⓘ Los Angeles Harbor Light NERFINISHED ⓘ Port of Long Beach NERFINISHED ⓘ Port of Los Angeles NERFINISHED ⓘ |
| locatedOn | Palos Verdes Peninsula NERFINISHED ⓘ |
| maintainedBy |
United States Air Force
NERFINISHED
ⓘ
United States Space Force NERFINISHED ⓘ |
| namedAfter | Arthur MacArthur Jr. NERFINISHED ⓘ |
| nearbyStructure |
Angels Gate Park
NERFINISHED
ⓘ
Korean Bell of Friendship NERFINISHED ⓘ Point Fermin Park NERFINISHED ⓘ |
| openToPublic | partially ⓘ |
| operator | United States Army ⓘ |
| partOf |
Harbor District of Los Angeles
NERFINISHED
ⓘ
Los Angeles Air Force Base support housing ⓘ |
| significantEvent |
Cold War air defense role
ⓘ
World War I coastal defense operations ⓘ World War II harbor defense operations ⓘ |
| startDate | 1914 ⓘ |
| usedFor |
Nike missile operations
NERFINISHED
ⓘ
anti-aircraft training ⓘ protection of Los Angeles Harbor ⓘ protection of Southern California coastline ⓘ training of coastal artillery units ⓘ |
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: Fort MacArthur Description of subject: Fort MacArthur is a former U.S. Army coastal defense installation in San Pedro, Los Angeles, that historically protected Los Angeles Harbor and now serves various military, residential, and community uses.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.