An airplane may crash into twin towers.Logical formLearned from6 sentences. A f-101 may crash into a schoolyard.Logical formLearned from6 sentences. Dot-coms may crash.Logical formLearned from6 sentences. Driver may crash a bus.Logical formLearned from6 sentences. A jeep may crash into a tree.Logical formLearned from6 sentences. A plane may crash in a village.Logical formLearned from6 sentences. A plane may crash in a ball of fire.Logical formLearned from6 sentences. Morale may crash.Logical formLearned from6 sentences. A plane may crash about some p.m..Logical formLearned from6 sentences. Developing country may crash.Logical formLearned from6 sentences. A f-16 may crash into a neighborhood.Logical formLearned from6 sentences. A (stock market) may crash.Logical formLearned from6 sentences. A plane may crash at some p.m..Logical formLearned from6 sentences. A plane may crash in a hayfield.Logical formLearned from6 sentences. A plane may crash in heavy rain.Logical formLearned from6 sentences.