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

Context : Tracy-Ann Rowe (born 17 September 1985 in Manchester, Jamaica) is a female track and field sprinter from Jamaica, who competes in the 100 metres and 200 metres. 
Question : What is Tracy-Ann Rowe's gender?
female

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?
World War II

Context : P. Bhaskaran suffered from Alzheimer's disease at the end of his life, and could not recognize anyone who worked with him. 
Question : What disease was a factor in the death of P. Bhaskaran?

Alzheimer's disease