Ключевые слова: adult, aeroplane, air, aircraft, aircrew, airline, airliner, airplane, alone, apparatus, attendant, breathing, cabin, caucasian, crew, demonstrating, female, flight, friendly, hands, hostess, indoors, inside, jetliner, lady, mask, modern, one, oxygen, person, personnel, plane, smiling, staff, standing, stewardess, uniform, vehicle, woman, young,