A volcanic ash can be hot.Logical formLearned from8 sentences. A volcanic ash can be dense.Logical formLearned from8 sentences. A decrease can be in volcanic activity.Logical formLearned from8 sentences. A quake can be volcanic.Logical formLearned from8 sentences. Tunnels can be volcanic.Logical formLearned from8 sentences. Pebbles can be volcanic.Logical formLearned from8 sentences. A dam can be volcanic.Logical formLearned from8 sentences. A volcanic rock can be crushed.Logical formLearned from8 sentences. Rocks can be volcanic.Logical formLearned from8 sentences. A (lava flow) can be volcanic.Logical formLearned from8 sentences. Types can be volcanic.Logical formLearned from8 sentences. A volcanic rock can be altered.Logical formLearned from8 sentences. Some volcanic earthquakes may be recorded.Logical formLearned from8 sentences. An (island group) can be volcanic.Logical formLearned from8 sentences. Pieces can be constituted-of-or-filled-with volcanic rock.Logical formLearned from8 sentences.