A world-city may be flown.Logical formLearned from22 sentences. Some persons may be flown.Logical formLearned from22 sentences. A person may fly aircraft.Logical formLearned from22 sentences. Warplanes may fly over an area.Logical formLearned from22 sentences. Drones may fly.Logical formLearned from21 sentences. A sheik may fly.Logical formLearned from21 sentences. An aircraft may fly over a country.Logical formLearned from21 sentences. A version may fly.Logical formLearned from21 sentences. A male may fly some sorties.Logical formLearned from21 sentences. A family may fly to a world-city.Logical formLearned from21 sentences. Persons may fly across a country.Logical formLearned from21 sentences. A balloon may fly around the world.Logical formLearned from21 sentences. A person may fly planes.Logical formLearned from21 sentences. Sparks may fly.Logical formLearned from21 sentences. Persons may fly into a country.Logical formLearned from21 sentences.