Ключевые слова: abstract, background, barb, barbed, barbwire, barrier, black, blue, border, boundary, camp, cloud, crime, criminal, danger, day, defense, fence, forbidden, freedom, guard, horizontal, iron, isolated, jail, limit, line, metal, military, nature, nobody, object, old, outdoor, prison, private, protect, protection, razor, safety, security, sharp, sign, silhouette, sky, steel, wall, war, white, wire,