A tsunami can be a wave.Logical formLearned from15 sentences. (Tsunami waves) may undergo warnings.Logical formLearned from15 sentences. An agency may lift a (tsunami alert).Logical formLearned from15 sentences. A tsunami can be dangerous.Logical formLearned from15 sentences. A victims may pertain-to a tsunami.Logical formLearned from15 sentences. Days may follow a tsunami.Logical formLearned from15 sentences. Some tsunami can be in an ocean.Logical formLearned from15 sentences. A tsunami may devastate a chain of islands.Logical formLearned from15 sentences. A tsunami may be spawned by an earthquake.Logical formLearned from15 sentences. A country may lift (tsunami warning).Logical formLearned from15 sentences. A tsunami can be imminent.Logical formLearned from15 sentences. A (tsunami alert) can be for a country.Logical formLearned from15 sentences. A quake may trigger a (tsunami warning).Logical formLearned from15 sentences. A repeat may pertain-to a (tsunami disaster).Logical formLearned from15 sentences. A tsunami can be in an ocean.Logical formLearned from15 sentences.