Ключевые слова: abstract, background, barbed, barrier, black, border, boundary, cage, chain, closed, crime, danger, design, fence, forbidden, freedom, gate, green, grid, guard, illustration, industry, iron, isolated, link chain fence, linkage, meadow, mesh, metal, metallic, military, nature, pattern, prison, protection, rusty, safety, security, sharp, steel, stone, texture, wall, wallpaper, wire, wired,