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

Example Input: Who directed the 2005 film 'Brokeback Mountain'?
Example Output: brokeback mountain

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

Example Input: When You Wish Upon a Star is an Oscar winning song from which animated movie?
Example Output:
animation