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

Example Input: What is the cathedral church of Rome?
Example Output: cathedral

Example Input: What is the country of origin of the cheese called caerphilly?
Example Output: caerphilly cheese

Example Input: In 2012, who was elected as General Secretary of the Chinese Communist Party and will serve as the leader of China until 2022, arguably becoming the most powerful man in the world ?
Example Output:
china