Ключевые слова: abstract, architecture, background, barb, barbed, barrier, blue, border, building, cables, chain, clouds, cloudy, commercial, concept, concrete, construction, copy, danger, day, daylight, exterior, fence, high, industrial, insulator, lamp, light, lighting, lines, link, metal, prison, protection, razor, safety, secure, security, sharp, silhouette, sky, steel, tall, texture, tower, transformer, wall, white, wire, wood,