Ключевые слова: accident, alarm, alert, attention, background, caution, combustible, danger, explode, explosive, extinguish, fire, flammable, forbidden, grunge, grungy, harmful, hazard, icon, illustration, isolated, label, laboratory, mark, messy, notice, notification, office, paperwork, print, protect, red, risk, rubber, safe, safety, scratched, sign, stamp, symbol, tag, warn,