Ключевые слова: abstract, background, barb, barbed, barbwire, barrier, black, block, board, border, boundary, building, bundle, cable, danger, design, district, element, fence, frame, ghetto, guard, hank, horizontal, house, iron, isolation, jail, line, metal, object, prison, protective, razor, safety, security, set, shape, sharp, sky, spike, spiral, steel, strong, view, vintage, wire, wired, zone,