Flights can be across a country.Logical formLearned from42 sentences. A person may sleep on a flight.Logical formLearned from42 sentences. A refund may be made in an event of a cancellation of a flight.Logical formLearned from42 sentences. A (flight time) can be short.Logical formLearned from42 sentences. A flight may be cancelled for reasons.Logical formLearned from42 sentences. A person may walk_up a flight of stairs.Logical formLearned from42 sentences. Flights can be over some hours.Logical formLearned from42 sentences. A (flight director) can be for a mission.Logical formLearned from42 sentences. A flight can be from a continent.Logical formLearned from42 sentences. A (return flight) can be from a world-city.Logical formLearned from42 sentences. A flight can be basic.Logical formLearned from42 sentences. A (seat belt) can be for a (flight home).Logical formLearned from42 sentences. Direct flights can be from a US-city.Logical formLearned from42 sentences. A crew may pertain-to a flight.Logical formLearned from42 sentences. Flights can be to a region.Logical formLearned from42 sentences.