A (tsunami disaster) may pertain-to week.Logical formLearned from23 sentences. Some countries may be affected by a tsunami.Logical formLearned from23 sentences. A (tsunami disaster) may pertain-to a country.Logical formLearned from23 sentences. An agency may issue (tsunami warning).Logical formLearned from22 sentences. (Tsunami warnings) may be issued.Logical formLearned from22 sentences. A tsunami may pertain-to a us-state.Logical formLearned from22 sentences. Days can be after a tsunami.Logical formLearned from22 sentences. A tsunami may be caused by an earthquake.Logical formLearned from22 sentences. Tsunamis can be deadly.Logical formLearned from22 sentences. A tsunami may happen.Logical formLearned from22 sentences. Persons may be killed in a tsunami.Logical formLearned from22 sentences. A tsunami may kill persons.Logical formLearned from22 sentences. A country may issue a (tsunami alert).Logical formLearned from22 sentences. A country may issue a tsunami.Logical formLearned from22 sentences. Some persons may be killed by a tsunami.Logical formLearned from22 sentences.