Ключевые слова: background, barb, barbed, barbwire, barricade, barrier, blue, border, boundary, chain, cloud, danger, dangerous, defense, escape, farm, fence, field, forbidden, freedom, guard, hurt, iron, jail, metal, object, pain, prevent, prison, protect, protection, razor, rusty, safe, safety, secure, security, sharp, sky, stacheldraht, steel, stop, twisted, wire,