Ключевые слова: base, boat, boston, coast, construction, crane, day, defense, dock, england, force, gray, guard, gun, harbor, harborwalk, lifebuoy, lifeguard, ma, maritime, massachusetts, military, naval, navy, new, ocean, patriot, patrol, pier, protection, radar, reflection, rescue, safety, sea, security, service, ship, surface, uniform, usa, vessel, wave, weapon,