Ключевые слова: accident, advice, alarm, alert, attention, background, beware, button, caution, computer, construction, danger, dangerous, error, exclamation, hazard, icon, illustration, importance, important, information, label, mark, message, mistake, note, notice, problem, risk, road, round, safety, secure, security, sign, signal, simple, symbol, traffic, triangle, vintage, warning, web,