Ключевые слова: accident, alarm, alert, attention, available, beware, careful, caution, concept, dangerous, digital, error, exclamation, fail, hand, hazard, help, idea, important, information, innovation, maintenance, mark, message, mistake, notice, oops, page, palm, problem, program, protection, red, repair, risk, safety, security, service, signs, stop, support, symbol, system, tech, technical, triangle, trouble, update, upgrade, warning,