Ключевые слова: accident, alarm, alert, background, bell, box, break, building, button, call, control, danger, emergency, equipment, evacuation, fire, flame, glass, health, help, industrial, information, isolated, metal, object, office, panel, press, prevent, prevention, protection, pull, push, red, rescue, safe, safety, school, security, sign, single, sound, sprinkler, switch, symbol, system, urgency, wall, warning, white,