What is the occupation of Wang Quan'an and Donald Sawyer?
Wang Quan'an Wang Quan'an () (b. 1965) is a Sixth Generation Chinese film director. Wang was born in Yan'an, China. He graduated from the Beijing Film Academy in 1991. He had a ten-year relationship with actress and muse Yu Nan, which ended in 2009.
Yum-Tong Siu Yum-Tong Siu (蕭蔭堂 ; born May 6, 1943 in Guangzhou, China) is the William Elwood Byerly Professor of Mathematics at Harvard University.