Ключевые слова: agriculture, background, barb, barbed, barbwire, barrier, blue, border, boundary, camp, cattle, concentration, country, crime, danger, day, escape, farm, fence, field, forbidden, frame, freedom, frontier, grass, ground, human, iron, jail, land, landscape, metal, natural, nature, outdoor, pole, protection, ranch, rural, safety, security, sharp, sign, sky, steel, symbol, torture, tree, wire,