A rivalry can be between persons.Logical formLearned from18 sentences. Brothers can be with a rivalry.Logical formLearned from18 sentences. A time can be in a rivalry.Logical formLearned from18 sentences. A rivalry may pertain-to golf.Logical formLearned from18 sentences. A case can be constituted-of-or-filled-with (sibling rivalry).Logical formLearned from18 sentences. Rivalries may develop.Logical formLearned from18 sentences. Rivalries may lead to violence.Logical formLearned from18 sentences. An alliance may slide into rivalry.Logical formLearned from18 sentences. Rivalry can be between some parties.Logical formLearned from18 sentences. Rivalries can be factors.Logical formLearned from18 sentences. A rivalry may undergo a rekindling.Logical formLearned from18 sentences. A case can be constituted-of-or-filled-with rivalry.Logical formLearned from18 sentences. A rivalry can be complex.Logical formLearned from18 sentences. A rivalry can be celebrated.Logical formLearned from17 sentences. A school may have a rivalry.Logical formLearned from17 sentences.