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

Example Input: What was the title of Britney Spears' second album (and the single that was released from it)?
Example Output: britney spears

Example Input: Name the actress, she died in August 2002, who played the part of 'Madame Edith Artois' in the TV series 'Allo, Allo'?
Example Output: edith artois

Example Input: Who composed the music for the 1937 ballet Checkmate?
Example Output:
checkmate