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

Input: Consider Input: Context : François Huber was only fifteen years old when he began to suffer from a disease which gradually resulted in total blindness; but, with the aid of his wife, Marie Aimée Lullin, and of his servant, François Burnens, he was able to carry out investigations that laid the foundations of a scientific knowledge of the life history of the honey bee. 
Question : What was François Huber's medical condition near the end of his life?

Output: blindness


Input: Consider Input: Context : After twelve years of marriage, Hannah Van Buren contracted tuberculosis and died on February 5, 1819, at the age of thirty-five. 
Question : What illness did Hannah Van Buren suffer from?

Output: tuberculosis


Input: Consider Input: Context : Mark Dean Schwab (December 16, 1968 -- July 1, 2008) was an American prisoner in the state of Florida, where he was executed for the April 18, 1991, rape and murder of 11-year-old Junny Rios-Martinez, Jr., eldest son of a musician in the band ``The Killer Dudes''. 
Question : Which crime Mark Dean Schwab is considered to have commited?


Output: murder