Complex sentence: Tehran, Gilan, Golestan, Mazanderan, Semnan, Qazvin, Qom, Some times Hamadan, and Markezi were included, For example during reign of Buyids.
Split into simpler sentences: Tehran, Gilan, Golestan, Mazanderan, Semnan, Qazvin, Qom. Sometimes Hamadan, and Markezi were included, For example during reign of Buyids.