Ключевые слова: alarm, alert, attention, background, beware, black, blackboard, board, care, careful, caution, chalk, chalkboard, construction, danger, dangerous, design, element, error, exclamation, hazard, icon, illustration, important, industry, information, isolated, label, mark, note, precaution, prevention, red, risk, road, safety, sign, signal, sticker, stop, symbol, text, title, traffic, transportation, triangle, triangular, warning, white,