Given the task definition, example input & output, solve the new input case.
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
Example: Who was the first American President?
Output: president of the united states
The question talks about the president of the USA.

New input case for you: The 'Free Officers Movement' took control of which country in a 1952 coup?
Output:
egyptian revolution of 1952