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

[Q]: What is the title of the four-episode special of 'Doctor Who', made for the Red Nose Day telethon in the UK, broadcast in March 1999?
[A]: doctor who

[Q]: In which country did the dance The Czardas originate?
[A]: csardas

[Q]: Who wrote the 1865 novel 'Alice's Adventures in Wonderland'?
[A]:
alice's adventures in wonderland