Ключевые слова: accident, alert, attention, beware, black, button, caution, chemical, collection, construction, danger, dangerous, death, electrical, electricity, emergency, error, exclamation, explosive, fire, flammable, hazard, high, icon, illustration, industry, information, isolated, label, message, poison, protection, radiation, risk, safety, security, set, shock, sign, signal, skull, stop, symbol, toxic, triangle, vector, voltage, warning, web, yellow,