A world-city can be undefeated.Logical formLearned from32 sentences. A game can be undefeated.Logical formLearned from31 sentences. Some teams may go undefeated.Logical formLearned from31 sentences. A mare can be undefeated.Logical formLearned from31 sentences. A team may remain undefeated.Logical formLearned from31 sentences. Men can be undefeated.Logical formLearned from30 sentences. A colt can be undefeated.Logical formLearned from29 sentences. A (home record) can be undefeated.Logical formLearned from29 sentences. A player can be undefeated.Logical formLearned from29 sentences. Some team can be undefeated.Logical formLearned from29 sentences. A professional boxer can be undefeated.Logical formLearned from28 sentences. A (conference record) can be undefeated.Logical formLearned from28 sentences. A (football team) can be undefeated.Logical formLearned from27 sentences. A march can be undefeated.Logical formLearned from27 sentences. Some season can be undefeated.Logical formLearned from26 sentences.