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

Example Input: Which English king was the son of Edward, the Black Prince?
Example Output: edward, the black prince

Example Input: Responsible for such films as 'Saving Private Ryan' and 'Gladiator', which film Production Company was founded by Steven Spielberg, Jeffrey Katzenberg and David Geffen in 1994?
Example Output: saving private ryan

Example Input: What game, created in 1904 by a quaker, Elizabeth (Lizzie) Phillips, when revised by Charles Darrow and others became one of the world's most played commercial board games?
Example Output:
charles darrow