Ключевые слова: aid, aircraft, airline, airplane, airport, arrow, aviation, ceiling, compartment, corridor, danger, department, detail, direction, door, doorway, emergency, empty, escape, exit, flight, fly, help, identifying, illuminated, information, inside, interior, light, marks, nobody, overhead, overhead compartment, passage, protection, safety, security, sign, standard, symbol, travel, urgency, warning,