Ключевые слова: accident, alarm, alert, arm, building, business, button, case, check, circle, control, danger, disaster, down, earthquake, emergency, escap, exit, fire, fixed, flame, glass, hand, handle, hazard, in, industrial, man, office, on, person, plan, press, pull, push, reaching, red, safe, safety, security, sign, switch, symbol, system, test, trigger, wall, warn,