Q: Does "The leading contenders for power at this time were Hong Taiji's oldest son Hooge and Hong Taiji' half brother Dorgon." provide a valid answer to "When did Hong Taiji die?"?
A: no

Q: Does "On April 2010 Shell announced that the corporation is in process of trying to find a potential buyer for all of its operations in Finland and is doing similar market research concerning Swedish operations." provide a valid answer to "In what year did Royal Dutch Shell and Reitan Group announce an agreement?"?
A: no

Q: Does "The other two centers in the south were Jiankang and Chengdu." provide a valid answer to "Besides Qiantang and Jiankang, what was the other major metropolitan center in the south?"?
A: yes

Q: Does "Racial definition was more flexible in the 18th and 19th centuries before the American Civil War." provide a valid answer to "What war changed the way the United States looked at race?"?
A:
yes