(Tsunami alerts) may be issued.Logical formLearned from6 sentences. An area may be devastated by (killer waves) of some tsunami.Logical formLearned from6 sentences. A (tsunami watch) may be issued.Logical formLearned from6 sentences. Persons can be scared of some tsunami.Logical formLearned from6 sentences. (Tsunami waves) may hit a coast.Logical formLearned from6 sentences. An east coast may be puted on (tsunami alert).Logical formLearned from6 sentences. A tsunami may trash villages.Logical formLearned from6 sentences. A tsunami can be weak.Logical formLearned from6 sentences. A tsunami may measure some metres.Logical formLearned from6 sentences. A (tsunami threat) may exist for areas.Logical formLearned from6 sentences. A tsunami can be a terrible tragedy.Logical formLearned from6 sentences. A (tsunami threat) can be from a quake.Logical formLearned from6 sentences. (Emergency workers) may give_up hope of finding survivors.Logical formLearned from6 sentences. A tremor may spawn a tsunami.Logical formLearned from6 sentences. A (tsunami alert) can be for a coastline.Logical formLearned from6 sentences.