Ключевые слова: 911, air, auto, automobile, car, damage, danger, dark, department, dioxide, dirty, emergency, energy, engine, environment, environmental, equipment, fight, fire, firetruck, flame, fuel, help, industry, light, motor, nature, nobody, pollution, power, protection, red, rescue, rescuers, safety, service, siren, sky, smog, smoke, space, transport, transportation, truck, vehicle, view, wing, work,