gptkbp:instance_of
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gptkb:historic_district
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gptkbp:accessibility
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gptkb:ferry
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gptkbp:architectural_style
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gptkb:Beaux-Arts
gptkb:Art_Deco
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gptkbp:area
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22 acres
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gptkbp:community_events
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held annually
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gptkbp:contains
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gptkb:Alcatraz_Federal_Penitentiary
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gptkbp:cultural_significance
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gptkb:American_history
gptkb:popular_culture
film and literature
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gptkbp:designated_as
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gptkb:historical_landmark
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gptkbp:educational_programs
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available
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gptkbp:environment
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gptkb:wildlife
gptkb:ecosystem
gptkb:gardens
native plants
coastal habitat
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gptkbp:established
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1850
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gptkbp:exhibits
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gptkb:historical_documents
art installations
audio tours
historical information
prison artifacts
photographic displays
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gptkbp:famous_for
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gptkb:Alcatraz_escape_of_1962
escape attempts
Al Capone's imprisonment
Robert Stroud, the Birdman of Alcatraz
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gptkbp:features
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historic buildings
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gptkbp:guided_tours
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available
offered
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gptkbp:historical_significance
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former military fortification
notorious prison
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https://www.w3.org/2000/01/rdf-schema#label
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Alcatraz Island Historic District
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gptkbp:includes
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gptkb:hospital
gptkb:towers
gptkb:lighthouse
gptkb:City_Hall
walled garden
officers' quarters
rocky shoreline
guard towers
historic artifacts
exercise yard
cellhouse
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gptkbp:location
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gptkb:San_Francisco_Bay
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gptkbp:managed_by
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gptkb:National_Park_Service
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gptkbp:part_of
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gptkb:Golden_Gate_National_Recreation_Area
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gptkbp:preservation_efforts
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ongoing
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gptkbp:research_opportunities
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available
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gptkbp:visitors
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over 1.5 million annually
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gptkbp:bfsParent
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gptkb:Alcatraz_Island_Lighthouse
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gptkbp:bfsLayer
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5
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