Ключевые слова: accident, advice, alert, arrow, attention, background, beware, black, caution, closeup, control, crush, danger, dangerous, europe, highway, icon, industry, information, isolated, metal, metallic, notice, old, other, plant, pole, power, prohibition, protection, restriction, risk, roadway, safety, shock, sign, signal, signboard, signpost, stop, symbol, traffic, transport, triangle, triangular, warn, warning, way, yellow,