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

Input: Consider Input: 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?

Output: taiping rebellion

Input: Consider Input: Who played Bonnie in the 1967 film 'Bonnie And Clyde'?

Output: bonnie and clyde

Input: Consider Input: Urs Buhler, Sebastian Izambard, Carlos Martin and David Millercomprise which singing group?
Output: carlos marin