Ключевые слова: 911, accident, activate, alert, alertness, break, burn, button, call, control, d, department, device, disaster, down, emergency, factory, fingers, fire, flame, hazard, help, hotel, industrial, information, install, moving, office, panel, press, prevent, prevention, protection, pull, pulling, push, reaching, rescue, room, safe, safety, school, secure, security, siren, sound, start, switch, system, warning,