instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
Who wrote and recorded the original version of the song Blue Suede Shoes which was a hit single for Elvis Presley in 1955?
answer:
blue suede shoes

question:
Which biologist was known as Darwin's Bulldog?
answer:
charles darwin

question:
Who was the only child vampire in Anne Rice's novels?
answer:
anne rice