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

Q: At the recent Tony Awards who won the award for Best Actress in a Play for her performance as Queen Elizabeth II in the play The Audience by Peter Morgan?

A: tony award for best actress in a play
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Q: The Briish Airways subsidiary BA Connect was sold to which other airline?

A: airline
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Q: Who is the engineer and inventor of the noise reduction system known as Dolby NR and a co-inventor of video tape recording while at Ampex?

A:
dolby noise-reduction system
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