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: Brenda Mae Tarpley achieved fame under what name?
Example Output: brenda mae tarpley

Example Input: Clun Forest, Romney and Bluefaced Leicester are all breeds of which animal?
Example Output:
romney sheep