Input question: Which instrument is used to examine the interior of the human eye?

Output answer: ophthalmoscope

Input question: The 1971 TV movie Duel was one of the first pieces of work by which Oscar winning film director?

Output answer: steven spielberg

Input question: What is the most popular fruit in the world?

Output answer: tomato

Input question: In the US television show 'The Sopranos', what is the nickname of Paulie Gualtieri?

Output answer:
walnuts