A government-agency may investigate a crash.Logical formLearned from9 sentences. Visibility can be at a time of a crash.Logical formLearned from9 sentences. A crash may leave some persons.Logical formLearned from9 sentences. A world-city may be killed in a (helicopter crash).Logical formLearned from9 sentences. Victims may pertain-to an (airplane crash).Logical formLearned from9 sentences. A national-agency can be after a crash.Logical formLearned from9 sentences. Some Americans may be killed in a crash.Logical formLearned from9 sentences. A crash may spark clashes.Logical formLearned from9 sentences. A (passenger plane crash) may pertain-to a country.Logical formLearned from9 sentences. A (helicopter crash) may occur.Logical formLearned from9 sentences. Victims may be killed in a crash.Logical formLearned from9 sentences. A plane may be destroyed in a crash.Logical formLearned from9 sentences. Crashes can be an attack.Logical formLearned from9 sentences. A site may pertain-to an (air crash).Logical formLearned from9 sentences. A crash can be in (oil prices).Logical formLearned from9 sentences.