Input question: Which Impressionist artist painted a series of pictures in the 1890's, depicting haystacks?

Output answer: claude monet

Input question: In World War I, what did the Allies call the defence linethat was known as the 'Siegfried Line' to the Germans?

Output answer: hindenburg line

Input question: Ken Burn's latest documentary debuted last Sunday on PBS. What subject matter does it cover?

Output answer: prohibition

Input question: Prosciutto is what type of foodstuff?

Output answer:
ham