A (brick building) can be plain.Logical formLearned from49 sentences. A truth can be plain.Logical formLearned from49 sentences. An outfit can be plain.Logical formLearned from48 sentences. A brown envelope can be plain.Logical formLearned from48 sentences. A cake can be plain.Logical formLearned from48 sentences. A side can be plain.Logical formLearned from48 sentences. A brick can be plain.Logical formLearned from47 sentences. A toast can be plain.Logical formLearned from47 sentences. A jacket can be plain.Logical formLearned from47 sentences. (Bread crumbs) can be plain.Logical formLearned from47 sentences. A mode can be plain.Logical formLearned from46 sentences. A string can be plain.Logical formLearned from46 sentences. An account can be plain.Logical formLearned from46 sentences. Vegetables can be plain.Logical formLearned from46 sentences. A baked potato can be plain.Logical formLearned from46 sentences.