A block can be gray.Logical formLearned from20 sentences. Short shorts can be gray.Logical formLearned from20 sentences. A lady can be gray.Logical formLearned from20 sentences. A gradient can be gray.Logical formLearned from20 sentences. A discoloration can be gray.Logical formLearned from20 sentences. Days can be gray.Logical formLearned from20 sentences. An evening can be gray.Logical formLearned from20 sentences. A (trench coat) can be gray.Logical formLearned from20 sentences. Silhouettes can be gray.Logical formLearned from20 sentences. A person may have a gray hair.Logical formLearned from20 sentences. Conditions can be gray.Logical formLearned from20 sentences. A (charcoal color paint) can be gray.Logical formLearned from20 sentences. A section can be gray.Logical formLearned from20 sentences. A theme can be gray.Logical formLearned from20 sentences. Caps can be gray.Logical formLearned from20 sentences.