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

Example Input: In what story of Arthur C. Clarke do Tibetan monks seek to list all the names of God as they believe He will bring the Universe to an end once this is done?
Example Output: arthur c. clarke

Example Input: Come Clean was the debut album by which 2000s band?
Example Output: come clean

Example Input: Which musical by Andrew Lloyd Webber is based on a book by Wilkie Collins?
Example Output:
andrew lloyd webber