A world-city may become a free imperial city.Logical formLearned from3 sentences. Causes can be imperial.Logical formLearned from3 sentences. A necropolis can be imperial.Logical formLearned from3 sentences. Diptyches can be imperial.Logical formLearned from3 sentences. A coach can be imperial.Logical formLearned from3 sentences. An (assassination attempt) can be imperial.Logical formLearned from3 sentences. A vault can be imperial.Logical formLearned from3 sentences. Advances can be imperial.Logical formLearned from3 sentences. An assembly may ratify imperial decrees.Logical formLearned from3 sentences. A student can be at an imperial university.Logical formLearned from3 sentences. A convoy can be imperial.Logical formLearned from3 sentences. A desire can be imperial.Logical formLearned from3 sentences. An imperial state of a country may send (advance men).Logical formLearned from3 sentences. Members may pertain-to an imperial guard.Logical formLearned from3 sentences. Farms can be imperial.Logical formLearned from3 sentences.