Ключевые слова: background, barb, barbed, barbed wire, barbwire, barrier, blue, blue sky, border, boundary, cage, chain, closed, cloud, concept, crime, criminal, danger, dangerous, defense, fence, forbid, forbidden, freedom, guard, human rights, imprisonment, inscription, iron, line, mesh, metal, military, nobody, prison, prisoner, protection, restriction, safety, security, shape, sign, sky, steel, violence, war, warning, white clouds, wire, wired,