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

Example Input: Who wrote and recorded the original version of the song Blue Suede Shoes which was a hit single for Elvis Presley in 1955?
Example Output: blue suede shoes

Example Input: Laurence Olivier directed and starred in a 1944 film, which began in the Globe Theatre and then gradually shifted to a realistic evocation of the Battle of Agincourt, which was adapted from which one of Shakespeare's plays?
Example Output: battle of agincourt

Example Input: Who had a hit with Devil Woman?
Example Output:
devil woman