A (plastic bag) can be plain.Logical formLearned from5 sentences. Chairs can be plain.Logical formLearned from5 sentences. A (writing style) can be plain.Logical formLearned from5 sentences. A goat can be plain.Logical formLearned from5 sentences. A person may use plain flour.Logical formLearned from5 sentences. Back can be plain.Logical formLearned from5 sentences. Cheeseburgers can be plain.Logical formLearned from5 sentences. (Cotton panties) can be plain.Logical formLearned from5 sentences. A straight talk can be plain.Logical formLearned from5 sentences. Productions can be plain.Logical formLearned from5 sentences. A disaster can be plain.Logical formLearned from5 sentences. A contrast can be plain.Logical formLearned from5 sentences. A support can be plain.Logical formLearned from5 sentences. A wardrobe can be plain.Logical formLearned from5 sentences. Stupid persons can be plain.Logical formLearned from5 sentences.