A sky can be dirty.Logical formLearned from16 sentences. Drawings can be dirty.Logical formLearned from16 sentences. A traitor can be dirty.Logical formLearned from16 sentences. A liberal can be dirty.Logical formLearned from16 sentences. A sinner can be dirty.Logical formLearned from16 sentences. A club can be dirty.Logical formLearned from16 sentences. A housewife can be dirty.Logical formLearned from16 sentences. A field can be dirty.Logical formLearned from16 sentences. A dirty mind may think.Logical formLearned from16 sentences. A person may air a dirty laundry.Logical formLearned from16 sentences. A blouse can be dirty.Logical formLearned from16 sentences. A (baseball cap) can be dirty.Logical formLearned from16 sentences. A female may have a dirty mind.Logical formLearned from16 sentences. A football can be dirty.Logical formLearned from16 sentences. Persons can be dirty.Logical formLearned from16 sentences.