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: Which British king, famous for his string of mistresses, had an arranged marriage to Caroline of Brunswick His first words to her were I am not well, pray get me a glass of Brandy. He did not accede to the throne until he was 57, when he was described as a bloated ruin.?
Output:
caroline of brunswick