Input question: The green jersey is worn by the Tour de France's?

Output answer: best sprinter

Input question: Political Aide Alastair Campbell was best known as Director of Communications and Strategy for which British Prime Minister?

Output answer: tony blair

Input question: What is the title of the extended version of 'QI'?

Output answer: qixl

Input question: What word, which in Greek means 'with' or 'after', prefixes many literary and language terms to denote something in a different position?

Output answer:
meta