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

Input: Consider Input: The Cato Street Conspiracy was a plot to kill which British Prime Minister?

Output: prime minister of the united kingdom


Input: Consider Input: Which future Nobel Prize winner did Bill Clinton choose as his Vice President?

Output: vice president of the united states


Input: Consider Input: Which Dr Who actor starred with Ken Stott in the 1994 BBC Scotland drama 'Takin' Over the Asylum ?


Output: doctor who