Flights may undergo a suspension.Logical formLearned from312 sentences. A flight may arrive.Logical formLearned from311 sentences. A flight can be planned.Logical formLearned from305 sentences. Flights can be outgoing.Logical formLearned from304 sentences. Flights can be from a US-city.Logical formLearned from302 sentences. Flights can be between a US-city.Logical formLearned from302 sentences. Flights can be in a country.Logical formLearned from301 sentences. A flight may be cancelled.Logical formLearned from301 sentences. A flight can be for a world-city.Logical formLearned from298 sentences. Flights may pertain-to a US-city.Logical formLearned from297 sentences. Direct flights can be regular.Logical formLearned from293 sentences. A passenger can be on a flight.Logical formLearned from291 sentences. (Surveillance flights) may pertain-to a country.Logical formLearned from281 sentences. A flight can be unlawful.Logical formLearned from280 sentences. A flight can be to safety.Logical formLearned from279 sentences.