Rivalries can be ruthless.Logical formLearned from7 sentences. A matter can be constituted-of-or-filled-with rivalry.Logical formLearned from7 sentences. Rivalries may arise.Logical formLearned from7 sentences. A rivalry can be visible.Logical formLearned from7 sentences. A rivalry can be icy.Logical formLearned from7 sentences. Rivalries can be between a commonwealth.Logical formLearned from7 sentences. A rivalry may explode.Logical formLearned from7 sentences. A winning streak can be in a rivalry.Logical formLearned from7 sentences. A US-city can be a rivalry.Logical formLearned from7 sentences. A role can be in a rivalry.Logical formLearned from7 sentences. A rivalry can be with a team.Logical formLearned from7 sentences. A reminder may pertain-to a rivalry.Logical formLearned from7 sentences. A rivalry can be for leadership.Logical formLearned from7 sentences. A person may engage in a rivalry.Logical formLearned from7 sentences. A (football rivalry) can be ferocious.Logical formLearned from7 sentences.