A silt can be gray.Logical formLearned from11 sentences. Creatures can be gray.Logical formLearned from11 sentences. An (apartment building) can be gray.Logical formLearned from11 sentences. A marble can be gray.Logical formLearned from11 sentences. Tails can be gray.Logical formLearned from11 sentences. Strips can be gray.Logical formLearned from11 sentences. Wings can be gray.Logical formLearned from11 sentences. Pearls can be gray.Logical formLearned from11 sentences. Shades can be gray.Logical formLearned from11 sentences. A picture can be gray.Logical formLearned from11 sentences. A mop can be constituted-of-or-filled-with gray hair.Logical formLearned from11 sentences. A boot can be gray.Logical formLearned from11 sentences. A (catch quota) can be constituted-of-or-filled-with some gray whales.Logical formLearned from11 sentences. A man can be gray.Logical formLearned from11 sentences. Mercedes can be gray.Logical formLearned from11 sentences.