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: In which city will the 2014 Tour de France begin?

Answer: 2014 tour de france


Question: 'Edward Lewis' and 'Vivian Ward' were the principal characters in which popular 1990 film?

Answer: edward lewis


Question: In 1958 what was the first airline to fly a jet airliner The Comet across the Atlantic ?

Answer:
de havilland comet