sentences:  After the country adopted a parliamentary system in response to Rhee's abuse of presidential power, Chang became the head of government.Chang Myon's government ended when Park Chung-hee led a successful military coup on May 16, 1961, which marked the end of the Second Republic and the nation's brief experimentation with the cabinet form of government.Chang Myon was born in 1899 in Jeokseon-dong, Hansung.