A rivalry can be between a US-president.Logical formLearned from10 sentences. A male may begin a rivalry.Logical formLearned from10 sentences. A rivalry may lead to a split.Logical formLearned from10 sentences. Rivalries can be in a nation.Logical formLearned from10 sentences. A rivalry can be between a world-city.Logical formLearned from10 sentences. Rivalries may play a part.Logical formLearned from10 sentences. Interest can be in a rivalry.Logical formLearned from10 sentences. Rivalries may emerge.Logical formLearned from10 sentences. A male may maintain a rivalry.Logical formLearned from10 sentences. A rivalry can be a factor.Logical formLearned from10 sentences. A story can be about rivalry.Logical formLearned from10 sentences. Siblings can be without rivalry.Logical formLearned from10 sentences. A female can be in a bit of a rivalry.Logical formLearned from10 sentences. Rivalry can be between teams.Logical formLearned from10 sentences. A rivalry can be steep.Logical formLearned from10 sentences.