Leaders can be constituted-of-or-filled-with some superpowers.Logical formLearned from3 sentences. A role can be as superpower.Logical formLearned from3 sentences. A place can be among superpowers.Logical formLearned from3 sentences. A superpower may consume itself.Logical formLearned from3 sentences. A (superpower rivalry) can be bipolar.Logical formLearned from3 sentences. A (superpower rivalry) can be diminished.Logical formLearned from3 sentences. A superpower can be stable.Logical formLearned from3 sentences. A superpower can be violent.Logical formLearned from3 sentences. A superpower may protect a political order.Logical formLearned from3 sentences. A country may be seen as a superpower.Logical formLearned from3 sentences. Some city-states may engage in a (superpower struggle).Logical formLearned from3 sentences. A (superpower struggle) can be protracted.Logical formLearned from3 sentences. An end may pertain-to a superpower.Logical formLearned from3 sentences. A superpower can be triumphant.Logical formLearned from3 sentences. A superpower may undergo a disintegration.Logical formLearned from3 sentences.