Ключевые слова: advertisement, advice, alarm, alert, area, attention, authorized, background, banner, beware, button, careful, caution, computer, concept, danger, dangerous, deadline, design, disaster, earthquake, error, exclamation, flood, forewarn, graphic, harmful, hazard, icon, idea, illustration, important, information, label, mark, message, notice, problem, protection, risk, safety, secure, security, sign, simple, symbol, warning, web, website, zone,