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

Example Input: In America, as what was Bill Shoemaker famous?
Example Output: bill shoemaker

Example Input: What actress, born in Muscat, Oman, began acting on Australian television on Paradise Beach and Home and Away and is known for her roles in Wedding Crashers (2005), Hot Rod (2007), Definitely, Maybe (2008) and Confessions of a Shopaholic (2009)?
Example Output: definitely, maybe

Example Input: Bill de Blasio took which office on 1st January 2014?
Example Output:
bill de blasio