Ключевые слова: abstract, architecture, background, barb, barbed, barbwire, barrier, black, blue, border, boundary, camp, closed, crime, danger, dangerous, dark, defense, design, fence, forbidden, freedom, green, grid, guard, iron, isolated, jail, metal, military, nature, old, pattern, prison, private, protection, safety, security, sharp, sign, silhouette, sky, steel, symbol, texture, wall, war, white, wire, zone,