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

[Q]: Who served in the Crimean War (1854 - 56), was responsible for suppressing the Taiping rebellion in China in 1860, was governor of the Sudan 1877 - 79, and died there?
[A]: taiping rebellion


[Q]: In which city was Christopher Columbus born?
[A]: columbus


[Q]: Who wrote the book `About A Boy` which was later turned into a successful film starring Hugh Grant?
[A]:
about a boy