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

[Q]: Which Union leader of the American Civil War gave his name to a tree in California's 'Sequoia National Park'?
[A]: american civil war


[Q]: Austin is the state capitol of which US State?
[A]: austin, texas


[Q]: The 1996 movie The Evening Star starring Shirley MacLaine who reprises the role of Aurora Greenway is a sequel to which Oscar-winning movie of the 1980s?
[A]:
the evening star