A ferry may crash.Logical formLearned from10 sentences. A plane may crash in terrain.Logical formLearned from10 sentences. A party may crash in elections.Logical formLearned from10 sentences. A helicopter may crash during (night training).Logical formLearned from10 sentences. Planes may crash on a month.Logical formLearned from10 sentences. A military airplane may crash.Logical formLearned from10 sentences. Some flights may crash.Logical formLearned from10 sentences. Co-pilots may crash a plane.Logical formLearned from10 sentences. A mig-21 may crash.Logical formLearned from10 sentences. Champions may crash.Logical formLearned from10 sentences. An aircraft may crash in flames.Logical formLearned from10 sentences. An (erj-190 jet) may crash upon landing.Logical formLearned from9 sentences. A (passenger airliner) may crash.Logical formLearned from9 sentences. An airliner may crash in an archipelago.Logical formLearned from9 sentences. A plane may crash in woods.Logical formLearned from9 sentences.