An (unmanned spy plane) may crash.Logical formLearned from17 sentences. A shuttle may crash.Logical formLearned from17 sentences. Word may crash.Logical formLearned from17 sentences. A male may crash into boards.Logical formLearned from17 sentences. Airliners may crash into buildings.Logical formLearned from17 sentences. A plane may crash into water.Logical formLearned from17 sentences. (Stock prices) may crash.Logical formLearned from17 sentences. A career may crash.Logical formLearned from17 sentences. A helicopter may crash in terrain.Logical formLearned from17 sentences. A helicopter may crash in a us-state.Logical formLearned from17 sentences. A jet may crash into an ocean.Logical formLearned from17 sentences. A plane may crash into a river.Logical formLearned from17 sentences. A plane may crash on an attempt.Logical formLearned from17 sentences. Waves may crash against a (sea wall).Logical formLearned from17 sentences. A (fighter jet) may crash in a country.Logical formLearned from17 sentences.