Stuff can be gray.Logical formLearned from69 sentences. Gray areas may be reported.Logical formLearned from69 sentences. Bars can be gray.Logical formLearned from69 sentences. A bird can be gray.Logical formLearned from69 sentences. A brick can be gray.Logical formLearned from69 sentences. An appearance can be gray.Logical formLearned from68 sentences. A finish can be gray.Logical formLearned from68 sentences. A plumage can be gray.Logical formLearned from68 sentences. A ponytail can be gray.Logical formLearned from68 sentences. A goatee can be gray.Logical formLearned from68 sentences. A gtv-6 can be gray.Logical formLearned from67 sentences. A gray hair can be short.Logical formLearned from66 sentences. A room can be gray.Logical formLearned from66 sentences. A streak can be gray.Logical formLearned from66 sentences. Socks can be gray.Logical formLearned from66 sentences.