Ключевые слова: alarm, arrow, attention, caution, danger, dangerous, electric, electrical, electricity, energy, extreme, hazard, industrial, industry, information, lab, laboratory, light, lightning, notice, one, panel, power, precaution, risk, round, safety, security, shiny, shock, sign, station, surge, symbol, threat, triangle, ventilation, voltage, wall, warning, yellow, zipper,