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

[Q]: Which group of the 1970's featured Tony Iommi on guitar, Geezer Butler on bass and Bill Ward on drums?
[A]: geezer butler


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


[Q]: Which post-impressionist painted The Card Players in 1892?
[A]:
the card players