Task: Explanation
Input (English): Zabulistan (Persian/Pashto: زابلستان ; "Zabul" + "-stan"), originally known as "Zavolistan", is a historical region roughly corresponding to today's Zabul Province in southern Afghanistan. Zabulistan translates to "land of Zabul" or "land of the Zabuls". The name "Zabuls" is probably a transliteration of Zunbils, a pagan dynasty that ruled the area during the Islamic conquest of Afghanistan. Question: What was the original name for the region where Zarmihr Karen served as Sasanian governor? Answer: Zavolistan
Output (English): Zabulistan PersianPashto: زابلستان ; Zabul + stan, originally known as Zavolistan, is a historical region roughly corresponding to todays Zabul Province in southern Afghanistan.