Ключевые слова: abstract, background, ball, barrier, blurred, border, cage, chain, city, close, closeup, competition, construction, design, element, fence, field, freedom, grass, green, grid, industrial, iron, light, line, link, match, material, mesh, metal, nature, net, outdoor, pattern, protection, recreation, safety, security, sky, sport, steel, summer, sunlight, sunset, texture, up, wall, white, wire, yellow,