A rivalry can be powerful.Logical formLearned from7 sentences. A rivalry may raise questions.Logical formLearned from7 sentences. A rivalry can be honourable.Logical formLearned from7 sentences. A rivalry can be between some institutions.Logical formLearned from7 sentences. A male may enter into rivalry.Logical formLearned from7 sentences. Rivalry can be with a madman.Logical formLearned from7 sentences. Rivalry can be between churches.Logical formLearned from7 sentences. A rivalry can be intramural.Logical formLearned from7 sentences. A world can be constituted-of-or-filled-with rivalry.Logical formLearned from7 sentences. A rivalry can be unending.Logical formLearned from7 sentences. A rivalry can be physical.Logical formLearned from7 sentences. A rivalry may remain friendly.Logical formLearned from7 sentences. A rivalry can be antagonistic.Logical formLearned from7 sentences. A rivalry can be with (party chief).Logical formLearned from7 sentences. A rivalry can be clear.Logical formLearned from7 sentences.