Ключевые слова: accident, alarm, alert, arrow, attraction, background, button, company, control, danger, decoration, electric, emergency, engineer, factory, generator, help, industry, machine, nobody, off, outdoor, panel, panic, place, power, press, prevent, problem, protection, push, red, reset, safety, security, shutdown, sign, sound, standard, stop, switch, symbol, system, technology, tool, urban, valve, wall, warning, work,