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

Ex Input:
Who had a 2000 hit with Country Grammar?

Ex Output:
country grammar


Ex Input:
In which city were the 1912 Olympic games held Oslo, Antwerp or Stockholm?

Ex Output:
1912 summer olympics


Ex Input:
Who directed the film 'The Aviator'?

Ex Output:

the aviator