A sandwich can be plain.Logical formLearned from21 sentences. A testimony can be plain.Logical formLearned from21 sentences. Words can be plain.Logical formLearned from21 sentences. A fashion can be plain.Logical formLearned from21 sentences. Taste can be plain.Logical formLearned from21 sentences. A cardboard can be plain.Logical formLearned from21 sentences. An objective can be plain.Logical formLearned from21 sentences. Biscuits can be plain.Logical formLearned from21 sentences. Businesses can be plain.Logical formLearned from21 sentences. Entertainment can be plain.Logical formLearned from21 sentences. A canvas can be plain.Logical formLearned from21 sentences. A package can be plain.Logical formLearned from21 sentences. A yellow can be plain.Logical formLearned from21 sentences. A flavor can be plain.Logical formLearned from21 sentences. Meat can be plain.Logical formLearned from21 sentences.