 Complete the following phrase:  In his youth, Shir Muhammad-bey led the life of a peasant, was a mirab, which means he divided water along irrigation ditches. In childhood or adolescence, he suffered some kind of eye disease and therefore always wore dark glasses. Hence the widespread nickname Korshirmat, which is translated from Uzbek as Blind Shermat. He studied reading and writing in his native village from the mullah, then graduated from the madrasah in Margilan. According to unconfirmed reports, Shir Mohammed-bek actively participated in the 