A creature can be gray.Logical formLearned from18 sentences. A waste can be gray.Logical formLearned from18 sentences. Letters can be gray.Logical formLearned from18 sentences. Figures can be gray.Logical formLearned from18 sentences. A rat can be gray.Logical formLearned from18 sentences. Tunics can be gray.Logical formLearned from18 sentences. A recession can be gray.Logical formLearned from18 sentences. A person may have gray hairs.Logical formLearned from18 sentences. Gray eyes can be dark.Logical formLearned from18 sentences. A tile can be gray.Logical formLearned from18 sentences. A cardstock can be gray.Logical formLearned from18 sentences. Some cats can be gray.Logical formLearned from18 sentences. Determination can be gray.Logical formLearned from18 sentences. A fluff can be gray.Logical formLearned from18 sentences. Enough can be for gray goo.Logical formLearned from18 sentences.