A volcanic activity can be explosive.Logical formLearned from18 sentences. An escarpment can be volcanic.Logical formLearned from18 sentences. A volcanic rock can be red.Logical formLearned from18 sentences. Clasts can be volcanic.Logical formLearned from18 sentences. A volcanic soil can be black.Logical formLearned from18 sentences. Volcanic ash may disrupt (air travel).Logical formLearned from18 sentences. A volcanic ash can be from a country.Logical formLearned from18 sentences. Research can be volcanic.Logical formLearned from17 sentences. A desert can be volcanic.Logical formLearned from17 sentences. An islet can be volcanic.Logical formLearned from17 sentences. A volcanic glass can be black.Logical formLearned from17 sentences. A monitoring can be volcanic.Logical formLearned from17 sentences. Landslides can be volcanic.Logical formLearned from17 sentences. Conditions can be volcanic.Logical formLearned from17 sentences. A mass can be volcanic.Logical formLearned from17 sentences.