Black smoke may billow into the sky.Logical formLearned from103 sentences. The sky may rain some days.Logical formLearned from103 sentences. The sky can be purple.Logical formLearned from103 sentences. The sky can be white.Logical formLearned from103 sentences. The sky can be above persons.Logical formLearned from102 sentences. Skies may pertain-to a month.Logical formLearned from102 sentences. A sky can be dull.Logical formLearned from102 sentences. Objects can be in the sky.Logical formLearned from102 sentences. A sky can be full of stars.Logical formLearned from101 sentences. Clouds can be in the sky.Logical formLearned from100 sentences. Passengers may have a panoramic view of the sky.Logical formLearned from99 sentences. Skies can be gray.Logical formLearned from99 sentences. Regions may pertain-to the sky.Logical formLearned from99 sentences. Skies can be endless.Logical formLearned from98 sentences. A sky can be inky.Logical formLearned from98 sentences.