Please answer the following question: - imagesize is 150px - death place is seoul , south korea - order is acting prime minister of south korea - successor is jang taek-sang - death date is 15 october 1975 - predecessor is chang myon - term end is may 6 , 1952 - term start is april 24 , 1952 - birth date is 19 august 1890 - birth place is yongbyon , p ' yongan province , joseon Given the details above, guess who could this information be about.
Answer:
yi yun-yong