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

Ex Input:
Who stars in the TV series Californication?

Ex Output:
californication


Ex Input:
Which English Leicester-born boxer fought Marvin Hagler in 1983 for the WBC and WBA World Middleweight titles and lost by a technical knockout in the sixth round?

Ex Output:
boxing


Ex Input:
Which 19th century Austrian composer is famous for his waltzes such as The Blue Danube and Tales of the Vienna Woods, and the operetta Die Fledermaus?

Ex Output:

blue danube