A volcanic eruption can be in andes.Logical formLearned from4 sentences. Authorities may fear a volcanic eruption.Logical formLearned from4 sentences. A volcanic island can be on full alert.Logical formLearned from4 sentences. An (ash fall) may set a volcanic island.Logical formLearned from4 sentences. A volcanic activity can be daily.Logical formLearned from4 sentences. A (fault line) can be volcanic.Logical formLearned from4 sentences. A volcanic eruption may present a country with a brand.Logical formLearned from4 sentences. Volcanic activity may create some island.Logical formLearned from4 sentences. A (death toll) can be from a volcanic eruption.Logical formLearned from4 sentences. A volcanic eruption may pollute a stratosphere with haze.Logical formLearned from4 sentences. An (ash cloud chaos) can be volcanic.Logical formLearned from4 sentences. A cloud of volcanic ash may return.Logical formLearned from4 sentences. Winds may push volcanic ash.Logical formLearned from4 sentences. Contamination can be from volcanic ash.Logical formLearned from4 sentences. Volcanic ash can be from an eruption of a volcano.Logical formLearned from4 sentences.