Townships can be plain.Logical formLearned from6 sentences. Borders can be plain.Logical formLearned from6 sentences. A bone can be plain.Logical formLearned from6 sentences. Arches can be plain.Logical formLearned from6 sentences. A flood can be plain.Logical formLearned from6 sentences. A black belt can be plain.Logical formLearned from6 sentences. A part can be plain.Logical formLearned from6 sentences. A shelf can be plain.Logical formLearned from6 sentences. (Gut strings) can be plain.Logical formLearned from6 sentences. A side can be plain.Logical formLearned from6 sentences. A syntax can be plain.Logical formLearned from6 sentences. (Block letters) can be plain.Logical formLearned from6 sentences. Counterparts can be plain.Logical formLearned from6 sentences. A device can be plain.Logical formLearned from6 sentences. A cow can be plain.Logical formLearned from6 sentences.