A sky can be cloudless.Logical formLearned from1 255 sentences. Skies can be cloudless.Logical formLearned from431 sentences. A day can be cloudless.Logical formLearned from335 sentences. A blue sky can be cloudless.Logical formLearned from192 sentences. The sky can be cloudless.Logical formLearned from147 sentences. An afternoon can be cloudless.Logical formLearned from91 sentences. Days can be cloudless.Logical formLearned from89 sentences. A night can be cloudless.Logical formLearned from84 sentences. Blue can be cloudless.Logical formLearned from55 sentences. A morning can be cloudless.Logical formLearned from40 sentences. Climes can be cloudless.Logical formLearned from37 sentences. A (night sky) can be cloudless.Logical formLearned from24 sentences. Nights can be cloudless.Logical formLearned from23 sentences. The skies can be cloudless.Logical formLearned from20 sentences. A day can be cloudless.Logical formLearned from18 sentences.