 Complete the following phrase:  This period coincides with the Seljuk era. In this era, Nizam al-Mulk proposed the movement of building schools and religious-political competitions, so the history of the Shiite seminary is not very clear. Although Hossein Soltanzadeh the author of the History of Iranian schools has mentioned six schools in this era, it is doubtful that they are Shiites. It can be said that Iran has been in political and cultural turmoil since the second half of the fifth century AH, from the 