Ключевые слова: air, aircraft, airline, airplane, airport, area, authority, aviation, beware, concept, control, danger, dangerous, departure, fear, flight, fly, flying, homeland, jet, landing, notice, off, offender, plane, prosecution, protection, rain, red, restrict, restricted, risk, runway, safety, secured, security, sign, sky, storm, symbol, takeoff, terminal, terrorism, text, traffic, travel, warning, weather,