Ключевые слова: abstract, barb, barbed, barbwire, barrier, black, blue, border, boundary, chain, construction, danger, dangerous, defense, design, fence, field, forbidden, frame, freedom, graphic, guard, iron, isolated, isolation, jail, metal, object, outdoor, pattern, people, prison, private, protection, rusty, safety, secure, security, shape, sharp, sign, silhouette, sky, steel, symbol, system, war, white, wire,