Ключевые слова: barb, barbed, barbed wire, barbwire, barrier, bob wire, border, border fence, boundary, cable, chain, constructed, danger, dangerous, defense, edges, enclosure, fence, fenced area, forbidden, guard, intervals, iron, jail, metal, metallic, pattern, prison, private, protect, protection, razor, realistic, restriction, safety, secure, security, set, sharp, sharp edges, spike, spiral, steel, strands, tangle, trespass, violence, wall, warning, wire,