An end may pertain-to a volcanic belt.Logical formLearned from2 sentences. Volcanic vents can be on flanks.Logical formLearned from2 sentences. A volcanic activity can be infrequent.Logical formLearned from2 sentences. A decline can be in volcanic activity.Logical formLearned from2 sentences. A risk may be caused by volcanic activity.Logical formLearned from2 sentences. A record can be constituted-of-or-filled-with volcanic activity.Logical formLearned from2 sentences. An episode can be constituted-of-or-filled-with volcanic eruptions.Logical formLearned from2 sentences. Seawater may circulate through volcanic rocks.Logical formLearned from2 sentences. Some volcanic plugs may be incised into a mudstone.Logical formLearned from2 sentences. Volcanic plugs can be isolated.Logical formLearned from2 sentences. A tempest can be volcanic.Logical formLearned from2 sentences. A region may be impacted by volcanic activity.Logical formLearned from2 sentences. Volcanic craters can be in a us-state.Logical formLearned from2 sentences. A (greenstone belt) may be made of volcanic rocks.Logical formLearned from2 sentences. (Volcanic activity) may produce some volcanic cones.Logical formLearned from2 sentences.