An (air crash) may pertain-to a world-city.Logical formLearned from189 sentences. A crash may pertain-to night.Logical formLearned from189 sentences. A crash can be hard.Logical formLearned from186 sentences. A crash may pertain-to month.Logical formLearned from185 sentences. A (plane crash) may kill some persons.Logical formLearned from185 sentences. A (car crash) can be in a world-city.Logical formLearned from185 sentences. Thunder may undergo a crash.Logical formLearned from182 sentences. Crashes can be spectacular.Logical formLearned from180 sentences. A crash can be hit-and-run.Logical formLearned from180 sentences. A (plane crash) may pertain-to week.Logical formLearned from175 sentences. A crash can be in a country.Logical formLearned from173 sentences. A (plane crash) can be in a us-state.Logical formLearned from173 sentences. A crash can be violent.Logical formLearned from172 sentences. An (air crash) may pertain-to a country.Logical formLearned from171 sentences. An investigation can be into a cause of a crash.Logical formLearned from170 sentences.