Ключевые слова: abstract, agriculture, army, background, barb, barbed, barbwire, barrier, black, blood, border, brutal, concept, contain, danger, dangerous, design, deterrent, dew, drop, farm, farmland, fence, freedom, graphic, guard, iron, isolated, isolation, jail, keep, law, metal, picture frame, prison, protection, rain, razor, safety, secure, security, sharp, silhouette, steel, symbol, system, trespass, urban, white, wire,