A rivalry can be thrilling.Logical formLearned from10 sentences. Rivalry may erupt in violence.Logical formLearned from10 sentences. Rivalry may heat_up.Logical formLearned from10 sentences. A rivalry may pertain-to some nations.Logical formLearned from10 sentences. An agreement may end a rivalry.Logical formLearned from10 sentences. Everyone may know about a rivalry.Logical formLearned from10 sentences. A picture may show rivalry.Logical formLearned from10 sentences. A sheik may have a rivalry.Logical formLearned from10 sentences. A rivalry may be heightened.Logical formLearned from9 sentences. A rivalry may die_down.Logical formLearned from9 sentences. A game can be (rivalry rematch).Logical formLearned from9 sentences. A rivalry may come to a fore.Logical formLearned from9 sentences. Rivalries can be powerful.Logical formLearned from9 sentences. A rivalry can be short.Logical formLearned from9 sentences. Rivalry may play a role.Logical formLearned from9 sentences.