A campaign can be undefeated.Logical formLearned from46 sentences. Fighters can be undefeated.Logical formLearned from43 sentences. A champ can be undefeated.Logical formLearned from43 sentences. A team can be undefeated.Logical formLearned from43 sentences. A horse can be undefeated.Logical formLearned from42 sentences. A person may remain undefeated.Logical formLearned from42 sentences. A (world champion) can be undefeated.Logical formLearned from42 sentences. A US-city may remain undefeated.Logical formLearned from41 sentences. Titans can be undefeated.Logical formLearned from38 sentences. Some teams may remain undefeated.Logical formLearned from37 sentences. A wrestler can be undefeated.Logical formLearned from36 sentences. A string can be undefeated.Logical formLearned from35 sentences. Broncos can be undefeated.Logical formLearned from34 sentences. A season can be undefeated.Logical formLearned from33 sentences. A (football team) may go undefeated.Logical formLearned from32 sentences.