Ключевые слова: angle, back, black, blue, circle, column, construction, country, field, forty, grinder, highway, image, information, installation, instruction, lie, man, metal, mount, orange, people, prevention, profession, protector, red, restriction, road, roadside, rule, rural, safety, season, shoulder, sign, snow, speed, support, traces, traffic, transport, triangle, uniform, white, winter, worker, works, yellow,