An aircraft may fly at altitude.Logical formLearned from8 sentences. Birds may fly in the sky.Logical formLearned from8 sentences. A plane may be flown by a pilot.Logical formLearned from8 sentences. A male may fly at an altitude.Logical formLearned from8 sentences. A raven may fly.Logical formLearned from8 sentences. A prototype may fly.Logical formLearned from8 sentences. A version may fly on a month.Logical formLearned from8 sentences. A wing may fly some sorties.Logical formLearned from8 sentences. A male may fly a glider.Logical formLearned from8 sentences. Test may fly.Logical formLearned from8 sentences. An aircraft may fly at speeds.Logical formLearned from8 sentences. A blow may fly.Logical formLearned from8 sentences. A female may fly to a side.Logical formLearned from8 sentences. Brothers may fly at (kitty hawk).Logical formLearned from8 sentences. Terrorists may fly planes.Logical formLearned from8 sentences.