Glasses can be gray.Logical formLearned from16 sentences. A cottage can be gray.Logical formLearned from16 sentences. A gray hair can be bushy.Logical formLearned from16 sentences. A soup can be gray.Logical formLearned from16 sentences. A claystone can be gray.Logical formLearned from16 sentences. A gray area can be wide.Logical formLearned from16 sentences. A phone can be gray.Logical formLearned from16 sentences. A marl can be gray.Logical formLearned from16 sentences. A line can be gray.Logical formLearned from16 sentences. A debris can be gray.Logical formLearned from16 sentences. A gray list can be constituted-of-or-filled-with (tax havens).Logical formLearned from16 sentences. Bicycles can be gray.Logical formLearned from16 sentences. (Prison uniforms) can be gray.Logical formLearned from16 sentences. Roofs can be gray.Logical formLearned from15 sentences. Rows can be gray.Logical formLearned from15 sentences.