A captain may pertain-to a flight.Logical formLearned from52 sentences. A ban can be on direct flights.Logical formLearned from52 sentences. Flights can be in air.Logical formLearned from52 sentences. (Flight surgeons) may pertain-to a government-agency.Logical formLearned from52 sentences. A (test flight) can be unmanned.Logical formLearned from52 sentences. A hub can be for flights.Logical formLearned from52 sentences. A flight may pertain-to night.Logical formLearned from52 sentences. Flights can be unscheduled.Logical formLearned from51 sentences. Some flights may be planned.Logical formLearned from51 sentences. A flight can be steady.Logical formLearned from51 sentences. A flight may pertain-to a shuttle.Logical formLearned from51 sentences. Flights can be repeated.Logical formLearned from51 sentences. A (flight program) can be secure.Logical formLearned from51 sentences. A ban can be on (helicopter flights).Logical formLearned from51 sentences. A flight can be endless.Logical formLearned from51 sentences.