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

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 Black Swan (in ballet)?

Ex Output:
black swan


Ex Input:
Which family film of 1957 starring Dorothy McGuire and Fes Parker centres on the story of a youg boy and his love for his dog on thier family ranch home during the 1860's which ends tragically after the dog contracts rabies following a fight with a wolf?

Ex Output:

dorothy mcguire