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

[Q]: Context : Balamani Amma died on 29 September 2004 after having suffered from Alzheimer's disease for nearly five years. 
Question : What medical condition did Balamani Amma have at the end of his life?
[A]: Alzheimer's disease


[Q]: Context : John Anthony Walker, Jr. (July 28, 1937 -- August 28, 2014) was a United States Navy Chief Warrant Officer and communications specialist convicted of spying for the Soviet Union from 1968 to 1985. 
Question : What armed force was John Anthony Walker in?
[A]: United States Navy


[Q]: Context : Johnnie S. Aikens (September 11, 1914 - January 1986) was a Democrat politician who served in the Missouri House of Representatives. 
Question : What was Johnnie S. Aikens's occupation?
[A]:
politician