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

Example Input: Which country is currently ruled by the Chakri dynasty that has been in power since 1782?
Example Output: chakri dynasty

Example Input: Who was re-elected Prime Minister of Canada in May 2011?
Example Output: prime minister of canada

Example Input: Which MP represents the constituency of Doncaster North?
Example Output:
doncaster north