A (helicopter crash) can be accidental.Logical formLearned from14 sentences. A (stock exchange) may undergo a crash.Logical formLearned from14 sentences. A factor can be to a crash.Logical formLearned from14 sentences. A spaceship may undergo a crash.Logical formLearned from14 sentences. A blame can be for a crash.Logical formLearned from14 sentences. A wave may undergo a crash.Logical formLearned from14 sentences. A crash can be vicious.Logical formLearned from14 sentences. A colonel may die in a crash.Logical formLearned from14 sentences. (Crash rates) can be high.Logical formLearned from14 sentences. Crashes may occur at intersections.Logical formLearned from14 sentences. A reminder may pertain-to a crash.Logical formLearned from14 sentences. Involvement can be in a crash.Logical formLearned from14 sentences. Risk can be for crashes.Logical formLearned from14 sentences. Crash may occur.Logical formLearned from14 sentences. A crash can be abrupt.Logical formLearned from14 sentences.