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

[EX Q]: Charlie Chaplin who died on Christmas Day in 1977, co founded which film studio along with Mary Pickford, Douglas Fairbanks?
[EX A]: douglas fairbanks

[EX Q]: What was the computer's name in 2001: A Space Odyssey?
[EX A]: 2001: a space odyssey

[EX Q]: Bolt, in the title of the 2008 movie, was voiced by which actor?
[EX A]:
bolt