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

Example Input: What nickname is given to the Australian Association Football International team?
Example Output: australia

Example Input: I which European city will you find 'Dam Square'?
Example Output: dam square

Example Input: What cartoonist drew Calvin and Hobbes from 1985 to 1995?
Example Output:
cartoonist