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

Q: Which chemical element is named after the Latin for Copenhagen where it was discovered?

A: copenhagen
****
Q: Which English comedian has joined Amanda Holden as one of the judges on the current series of 'Britain's Got Talent'?

A: britain's got talent
****
Q: 'Ida May' was the original title of which hit single by Chuck Berry?

A:
chuck berry
****