A ticket can be for a flight.Logical formLearned from62 sentences. An option may apply to some flights.Logical formLearned from62 sentences. Flights may cancel.Logical formLearned from62 sentences. Flights can be transoceanic.Logical formLearned from62 sentences. (Helicopter flights) may pertain-to an international-political-entity.Logical formLearned from62 sentences. A flight can be from an airport.Logical formLearned from62 sentences. A success may pertain-to a flight.Logical formLearned from61 sentences. A place can be in a flight.Logical formLearned from61 sentences. A person may get on a flight.Logical formLearned from61 sentences. A first flight can be to a US-city.Logical formLearned from61 sentences. A flight can be harrowing.Logical formLearned from61 sentences. Flight may suffer some problems.Logical formLearned from61 sentences. A (return flight) can be to a world-city.Logical formLearned from61 sentences. A return can be to flight.Logical formLearned from61 sentences. A (flight school) can be in a us-state.Logical formLearned from61 sentences.