Tops may pertain-to clouds.Logical formLearned from68 sentences. Clouds can be behind a person.Logical formLearned from67 sentences. Clouds may start.Logical formLearned from67 sentences. A veil can be constituted-of-or-filled-with clouds.Logical formLearned from67 sentences. Clouds may disperse.Logical formLearned from66 sentences. A cloud can be soft.Logical formLearned from65 sentences. A cloud can be poisonous.Logical formLearned from65 sentences. A cloud can be constituted-of-or-filled-with sand.Logical formLearned from65 sentences. (Storm clouds) may gather.Logical formLearned from65 sentences. Clouds can be toxic.Logical formLearned from64 sentences. Clouds may roll.Logical formLearned from64 sentences. An (ash cloud) can be over a continent.Logical formLearned from63 sentences. Cloud may smile.Logical formLearned from63 sentences. Clouds may be parted.Logical formLearned from63 sentences. Clouds may disappear.Logical formLearned from62 sentences.