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

Example Input: Which 1976 Derek Jarman film was dialogued entirely in Latin?
Example Output: derek jarman

Example Input: In 2013 Yahoo purchased which pictures and video microblogging website business that was founded in 2007 in New York City by David Karp?
Example Output: yahoo!

Example Input: In 'Eastenders', what part is played by Patsy Palmer - full name required?
Example Output:
eastenders