Ключевые слова: abstract, airport, architecture, area, back, background, barb, barbed, barricade, barrier, black, border, boundary, camp, cloud, crime, criminal, dark, defense, edge, evening, fence, forbidden, freedom, front, gray, guard, horizontal, jail, line, metal, military, monochrome, night, nobody, old, prison, private, protection, protective, razor, safety, security, sharp, sign, sky, steel, wall, war, wire,