Ключевые слова: 3d, area, background, bar, black, blank, border, break, cage, cell, concept, cover, crime, design, door, empty, enclose, escape, fence, figure, forbidden, free, freedom, grate, grid, illustration, iron, jail, law, light, metal, object, prison, protection, rendering, room, safety, security, shape, space, square, steel, structure, surround, symbol, wall, warning, white, wire, zone,