A season may begin under a cloud.Logical formLearned from7 sentences. (Rain clouds) can be at a person.Logical formLearned from7 sentences. (Rain clouds) may prevent (space shuttle) from returning.Logical formLearned from7 sentences. Low clouds may persist.Logical formLearned from7 sentences. A dark cloud can be over an area.Logical formLearned from7 sentences. Some band can be constituted-of-or-filled-with clouds.Logical formLearned from7 sentences. Clouds may obscure a view.Logical formLearned from7 sentences. A cloud can be unexplained.Logical formLearned from7 sentences. A cloud may fail.Logical formLearned from7 sentences. A meeting may be started under a cloud of pessimism.Logical formLearned from7 sentences. A (smog cloud) can be thick.Logical formLearned from7 sentences. A dark cloud may appear.Logical formLearned from7 sentences. Shoppers may flee a black cloud of dust.Logical formLearned from7 sentences. Health may cast a cloud.Logical formLearned from7 sentences. An area can be constituted-of-or-filled-with low clouds.Logical formLearned from7 sentences.