Rivalries can be between factions.Logical formLearned from21 sentences. A rivalry can be alleged.Logical formLearned from21 sentences. A gravity may pertain-to a rivalry.Logical formLearned from21 sentences. A rivalry can be perceived.Logical formLearned from21 sentences. Tensions may be fuelled in part by a rivalry.Logical formLearned from21 sentences. A rivalry can be between a person.Logical formLearned from21 sentences. Rivalry can be between factions.Logical formLearned from21 sentences. Some decades can be constituted-of-or-filled-with rivalry.Logical formLearned from21 sentences. A rivalry can be evident.Logical formLearned from20 sentences. A rivalry may be ended.Logical formLearned from20 sentences. A rivalry can be unhealthy.Logical formLearned from20 sentences. A rivalry can be legitimate.Logical formLearned from20 sentences. A rivalry may be born.Logical formLearned from20 sentences. Rivalries can be spirited.Logical formLearned from20 sentences. A rivalry may undergo importance.Logical formLearned from20 sentences.