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.

Context : In 1969, Mark Bernes was dying from lung cancer. 
Answer : lung cancer
What did Mark Bernes die of?

Context : Second Brother is a novel by the American writer David Guy set in 1960s Pittsburgh, Pennsylvania. 
Answer : Pittsburgh
Which place is Second Brother in?

Context : Ariel Gil Valdes (born 3 August 1983) is a retired Cuban male volleyball player. 
Answer : male

What sex is Ariel Gil Valdes?