Generate a correct and concise answer for the question based on the words in the context.

Example Input: Context : Lotus Software (called Lotus Development Corporation before its acquisition by IBM) was an American software company based in Massachusetts. 
Question : What is Lotus Software's parent company?
Example Output: IBM

Example Input: Context : Tan Yuling (1920 -- 14 August 1942), born Tatara Yuling, was a concubine of China's last emperor Puyi. 
Question : What is Tan Yuling's spouse's name?
Example Output: Puyi

Example Input: Context : Hermann-Friedrich Joppien (19 July 1912 -- 25 August 1941) was a German Luftwaffe military aviator during World War II, a fighter ace credited with 70 enemy aircraft shot down in roughly 270 combat missions. 
Question : During which historic war was Hermann-Friedrich Joppien an officer?
Example Output:
World War II