A female may go undefeated.Logical formLearned from26 sentences. Games can be undefeated.Logical formLearned from25 sentences. A (welterweight champion) can be undefeated.Logical formLearned from25 sentences. A club can be undefeated.Logical formLearned from25 sentences. Seasons can be undefeated.Logical formLearned from25 sentences. A heavyweight can be undefeated.Logical formLearned from24 sentences. A filly can be undefeated.Logical formLearned from24 sentences. A round can be undefeated.Logical formLearned from23 sentences. A mark can be undefeated.Logical formLearned from23 sentences. A male may retire undefeated.Logical formLearned from23 sentences. A us-state may remain undefeated.Logical formLearned from23 sentences. A year can be undefeated.Logical formLearned from22 sentences. A leader can be undefeated.Logical formLearned from21 sentences. Wrestlers can be undefeated.Logical formLearned from21 sentences. Players can be undefeated.Logical formLearned from21 sentences.