Ключевые слова: abstract cloud, abstract sky, barbed wire, barrier, black metal, black white, blue cloud, blue metal, blue sky, cloud background, crime, danger background, defense, fence, guard, iron, iron background, iron fence, jail, metal background, metal fence, metal wall, prison, protection, safety, safety background, sky, sky background, sky clouds, steel, sun cloud, sun sky, white fence, white sky, wire fence,