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

Example Input: Name Alfred Hitchcock's first sound film as director?
Example Output: alfred hitchcock

Example Input: In music, which band consists of Billy Gibbons, Dusty Hill and Frank Beard?
Example Output: frank beard

Example Input: Who did Ronald Reagan succeed as American President?
Example Output:
president of the united states