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

Input: Consider Input: What was the computer's name in 2001: A Space Odyssey?

Output: 2001: a space odyssey


Input: Consider Input: Who directed the film Black Swan (in ballet)?

Output: black swan


Input: Consider Input: Which biologist was known as Darwin's Bulldog?


Output: charles darwin