Ключевые слова: accident, alarm, alert, allowed, attention, background, beware, burn, burnable, caution, chemistry, danger, dangerous, emblem, explosive, fire, flame, flammable, forbidden, gas, hazard, heat, highly, hot, icon, illustration, industrial, industry, inflammable, isolated, label, liquid, material, protect, protection, red, restricted, risk, safe, safety, security, sign, signal, symbol, triangle, triangular, warning, yellow, zone,