Rivalries may mean that something-is-the-case.Logical formLearned from5 sentences. A rivalry may pertain-to brothers.Logical formLearned from5 sentences. A situation may be complicated by rivalries.Logical formLearned from5 sentences. (Sibling rivalry) may undergo (squabbling rounds).Logical formLearned from5 sentences. Significance may pertain-to a rivalry.Logical formLearned from5 sentences. A rivalry can be between sons.Logical formLearned from5 sentences. A rivalry can be well-documented.Logical formLearned from5 sentences. Rivalries may play_out on a (basketball court).Logical formLearned from5 sentences. A rivalry can be for wordniks.Logical formLearned from5 sentences. Rivalries can be in sports.Logical formLearned from5 sentences. Awareness may pertain-to a rivalry.Logical formLearned from5 sentences. Rivalry can be among sons.Logical formLearned from5 sentences. A rivalry may begin with an encounter.Logical formLearned from5 sentences. Rivalries can be chaotic.Logical formLearned from5 sentences. A statement can be an outgrowth of a rivalry.Logical formLearned from5 sentences.