A rivalry can be devious.Logical formLearned from6 sentences. A (sibling rivalry) can be friendly.Logical formLearned from6 sentences. A rivalry can be in a match.Logical formLearned from6 sentences. A rivalry can be for resources.Logical formLearned from6 sentences. A scramble may sharpen a rivalry.Logical formLearned from6 sentences. Rivalries can be cutthroat.Logical formLearned from6 sentences. Rivalry can be alive.Logical formLearned from6 sentences. Regard can be to rivalry.Logical formLearned from6 sentences. Rivalries may pertain-to the past.Logical formLearned from6 sentences. A room can be for rivalry.Logical formLearned from6 sentences. A country may contain rivalries.Logical formLearned from6 sentences. Rivalries may pertain-to opposition.Logical formLearned from6 sentences. Rivalry can be between ethnic groups.Logical formLearned from6 sentences. Rivalries can be interpersonal.Logical formLearned from6 sentences. Rivalries can be long-term.Logical formLearned from6 sentences.