Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

Input: Consider Input: Which future Nobel Prize winner did Bill Clinton choose as his Vice President?

Output: vice president of the united states


Input: Consider Input: What was the first Apollo mission to leave Earth orbit and orbit the moon, in 1968?

Output: apollo


Input: Consider Input: Which popular BBC children's TV characters ate 'blue string pudding', The... ?


Output: bbc