Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
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Question: What is the second book of the Bible?

Answer: bible


Question: Who won the Women's Singles at the 2015 Australian Open Tennis Championships?

Answer: the championships, wimbledon


Question: The opera ' Beatrice and Benedict' by Berlioz is based on which Shakespeare play?

Answer:
beatrice