Question: Janina Vilayet was a division created by merging a subdivision of the Ottoman Empire known as what?
Sentence (from "Janina Vilayet"): It was created by merging Pashalik of Yanina and Pashalik of Berat with sanjaks of Janina, Berat, Ergiri, Preveze, Tırhala and Kesriye.
Relevant evidence: Yes