Ключевые слова: background, barrier, borders, boundary, chain, chainlink, crime, criminal, cyclone, danger, defending, edge, enclosure, escape, fence, fences, forbidden, frame, freedom, guard, iron, jail, keep, link, locking, mesh, metal, penitentiary, perimeter, police, prevent, prison, prisoner, protection, rusty, safety, security, sharp, spaces, steel, system, twisted, wire, wired,