A female may see strands of gray hair.Logical formLearned from15 sentences. A reality can be gray.Logical formLearned from15 sentences. (Defined recession dates) may shade gray.Logical formLearned from15 sentences. A black ink can be gray.Logical formLearned from15 sentences. Clothings can be gray.Logical formLearned from15 sentences. An aluminum can be gray.Logical formLearned from15 sentences. A character can be gray.Logical formLearned from15 sentences. A fleece can be gray.Logical formLearned from15 sentences. A metropolis can be gray.Logical formLearned from15 sentences. A season can be gray.Logical formLearned from15 sentences. A coating can be gray.Logical formLearned from15 sentences. Machines can be gray.Logical formLearned from15 sentences. A (wool sweater) can be gray.Logical formLearned from15 sentences. A grout can be gray.Logical formLearned from15 sentences. Smudges can be gray.Logical formLearned from15 sentences.