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: Which actress played Arwen in the trilogy of films?

Answer: arwen


Question: In which classic T.V. crime series did Captain Frank Furillo appear ?

Answer: frank furillo


Question: Which book of the Christian Bible's new testament comprises a letter from St Paul to members of a church that he had founded at Macedonia?

Answer:
bible