Ключевые слова: assembly, cable, caution, cigarette, circle, disconnector, exterior, exterior shot, faded, fire, four, graphically, hall, hand, industrial area, industry, lightning, match, metal, mobile phone, no persons, nobody, not readable, outdoor shot, outside, pictogram, profile, prohibition, ranking, rectangle, rectangular, red, round, row, side by side, sign, smoke, switch, symbols, triangle, unreadabl, vertical, wall, warn, warning, warning sign, warning signs, white, workshop, yellow,