Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.

Q: Context : NGC 6886 is a planetary nebula in the constellation Sagitta.
Answer : Sagitta

A: In which constellation is NGC 6886?
****
Q: Context : Sir Henry Dymoke, 1st Baronet (1801 -- 28 April 1865), was a British landowner and the hereditary King's Champion.
Answer : 28 April 1865

A: The death of Henry Dymoke occured on what date?
****
Q: Context : Francois 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 Aimee Lullin, and of his servant, Francois Burnens, he was able to carry out investigations that laid the foundations of a scientific knowledge of the life history of the honey bee.
Answer : blindness

A:
What was the sickness that killed Francois Huber?
****