| http://www.w3.org/ns/prov#value | - 218) -tion concerning any vessel, aircraft, work of defense, navy yard, naval station, submarine base, coaling station, fort, battery, torpedo station, dockyard, canal, railroad, arsenal, camp, factory, mine, telegraph, telephone, wireless, or signal station, building, office, or other place connected with the national defense owned or constructed, or in progress of construction by the United Stat
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