An (aviation authority) may suspend some flights.Logical formLearned from110 sentences. A (return flight) may pertain-to persons.Logical formLearned from110 sentences. Some passengers can be on a flight.Logical formLearned from110 sentences. Flights can be unmanned.Logical formLearned from109 sentences. Flights can be from airports.Logical formLearned from109 sentences. A flight may arrive.Logical formLearned from109 sentences. A flight can be attempted.Logical formLearned from109 sentences. A return can be to a flight.Logical formLearned from109 sentences. An increase can be in flights.Logical formLearned from109 sentences. A flight can be between a US-city.Logical formLearned from109 sentences. Flights can be to a world-city.Logical formLearned from109 sentences. Flights may be suspended.Logical formLearned from109 sentences. Patterns can be in flight.Logical formLearned from108 sentences. A flight can be great.Logical formLearned from108 sentences. A (flight status) may pertain-to a person.Logical formLearned from108 sentences.