A cloud can be over a market.Logical formLearned from18 sentences. Parts may pertain-to a cloud.Logical formLearned from18 sentences. Clouds may undergo an understanding.Logical formLearned from18 sentences. (Phase clouds) can be mixed.Logical formLearned from18 sentences. A cloud can be dirty.Logical formLearned from18 sentences. (Cloud droplets) may form.Logical formLearned from18 sentences. A cloud can be dangerous.Logical formLearned from18 sentences. An (ash cloud) can be from a volcano.Logical formLearned from18 sentences. An (ash cloud) may hang over a continent.Logical formLearned from18 sentences. A case may cast a cloud.Logical formLearned from18 sentences. A cloud may be lifted.Logical formLearned from18 sentences. Clouds may be hampered.Logical formLearned from18 sentences. A cloud can be over a meeting of (trade ministers).Logical formLearned from18 sentences. Clouds can be constituted-of-or-filled-with chemicals.Logical formLearned from18 sentences. A person may see a cloud of smoke.Logical formLearned from18 sentences.