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

Example Input: Which film actor became mayor of Carmel, California in 1986?
Example Output: carmel-by-the-sea, california

Example Input: Which Beatles song was also recorded by Peter Sellers?
Example Output: the beatles

Example Input: Which duo had number one hits during the 1990's with 'Block Rockin' Beats' and 'Setting Sun'?
Example Output:
block rockin' beats