A town can be plain.Logical formLearned from16 sentences. A blue shirt can be plain.Logical formLearned from16 sentences. A (manila envelope) can be plain.Logical formLearned from16 sentences. Communities can be plain.Logical formLearned from16 sentences. Meats can be plain.Logical formLearned from16 sentences. A floor can be plain.Logical formLearned from16 sentences. A justice can be plain.Logical formLearned from16 sentences. Formats can be plain.Logical formLearned from16 sentences. Rivers can be plain.Logical formLearned from16 sentences. A potato can be plain.Logical formLearned from16 sentences. A falsehood can be plain.Logical formLearned from16 sentences. A mask can be plain.Logical formLearned from15 sentences. A reverse can be plain.Logical formLearned from15 sentences. An altar can be plain.Logical formLearned from15 sentences. A soldier can be plain.Logical formLearned from15 sentences.