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

Example Input: Which chemical element is named after the Latin for Copenhagen where it was discovered?
Example Output: copenhagen

Example Input: Which late 17th and early 18th century British architect designed Brighton Pavilion, Marble Arch, and the plan for London's Regents Park?
Example Output: royal pavilion

Example Input: Which group had a UK number one hit in July 2009 with 'Beat Again'?
Example Output:
beat again