Ключевые слова: abstract, background, barb, barbed, barbwire, barricade, barrier, blue, border, boundary, closeup, cloud, coil, crown, cut, danger, dangerous, defense, enclose, fence, forbidden, freedom, graphic, guard, iron, isolated, jail, metal, nobody, outdoors, prison, protect, protection, razor, rusty, safe, safety, secure, security, shape, sharp, sky, spikes, steel, stop, texture, thorns, toned, twisted, wire,