Ключевые слова: alarm, alert, apartment, background, bell, box, break, button, concept, concrete, control, danger, detector, emergency, equipment, fire, flame, glass, home, house, industrial, isolated, machine, object, office, panel, press, prevention, protection, pull, pull down, red, rescue, safe, safety, school, security, shopping mall, sign, single, switch, symbol, system, wall, warning, white,