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

Example Input: In which country are the Angel Falls, or Kerepakupai Ven?
Example Output: angel falls

Example Input: Who played the title role in the 1955 film 'Davy Crockett, King Of The Wild Frontier'?
Example Output: davy crockett

Example Input: Elijah Wood voices Mumble in which animated movie?
Example Output:
animation