Ключевые слова: abstract, army, background, barb, barbed, barbed wire, barbwire, barrier, black, black and white, border, boundary, camp, closed, concept, crime, danger, dangerous, defense, detail, detention, fence, forbidden, freedom, gray, guard, immigration, iron, jail, metal, military, nobody, obstical, old, outdoor, prison, protection, protective, razor, razor wire, safety, security, sharp, sky, steel, symbol, wall, war, warning, wire,