A volcanic ash can be airborne.Logical formLearned from9 sentences. A volcanic rock can be loose.Logical formLearned from9 sentences. Gas may erupt from a volcanic lake.Logical formLearned from9 sentences. A piece can be constituted-of-or-filled-with volcanic rock.Logical formLearned from9 sentences. An atoll can be volcanic.Logical formLearned from9 sentences. Volcanic activity may bring a mountain.Logical formLearned from9 sentences. A volcanic ash can be gray-white.Logical formLearned from9 sentences. A volcanic ash may cause damage to (jet engines).Logical formLearned from9 sentences. An area may be affected by volcanic ash.Logical formLearned from9 sentences. Volcanic ash can be in air.Logical formLearned from9 sentences. An area can be constituted-of-or-filled-with volcanic rock.Logical formLearned from9 sentences. A relationship can be volcanic.Logical formLearned from9 sentences. Heavy rains may be mixed with volcanic ash.Logical formLearned from9 sentences. A volcanic eruption can be under a glacier.Logical formLearned from9 sentences. A volcanic eruption can be deadly.Logical formLearned from9 sentences.