Black clouds can be heavy.Logical formLearned from17 sentences. Clouds can be gauzy.Logical formLearned from17 sentences. An appearance may pertain-to clouds.Logical formLearned from17 sentences. Clouds may undergo observations.Logical formLearned from17 sentences. A view may show clouds.Logical formLearned from17 sentences. A cloud can be elongated.Logical formLearned from17 sentences. A cloud may pertain-to a us-state.Logical formLearned from17 sentences. Study may pertain-to an (ash cloud).Logical formLearned from17 sentences. A cloud can be constituted-of-or-filled-with radioactivity.Logical formLearned from17 sentences. The sun may poke through clouds.Logical formLearned from17 sentences. A male may see a cloud.Logical formLearned from17 sentences. Scientists may study clouds.Logical formLearned from17 sentences. Clouds can be for (climate change data).Logical formLearned from17 sentences. A cloud can be constituted-of-or-filled-with natural gas.Logical formLearned from17 sentences. A cloud of smoke may be seen.Logical formLearned from17 sentences.