Tsunamis can be prehistoric.Logical formLearned from9 sentences. A (tsunami warning) can be for areas.Logical formLearned from9 sentences. A tsunami may develop.Logical formLearned from9 sentences. Tsunamis may cause damage.Logical formLearned from9 sentences. A tsunami may kill thousands.Logical formLearned from9 sentences. Tsunami can be a word.Logical formLearned from9 sentences. A tsunami may be receded.Logical formLearned from9 sentences. A tsunami may devastate a city.Logical formLearned from9 sentences. Communities may be affected by a tsunami.Logical formLearned from9 sentences. A (tsunami warning system) can be comprehensive.Logical formLearned from9 sentences. A tsunami may undergo a formation.Logical formLearned from9 sentences. Donations can be for (tsunami relief).Logical formLearned from9 sentences. Areas may be damaged by a tsunami.Logical formLearned from9 sentences. Panic can be for fear of a tsunami.Logical formLearned from9 sentences. Tsunamis can be in years.Logical formLearned from9 sentences.