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

Example Input: Whitney Houston`s husband Bobby Brown was originally a member of which successful band?
Example Output: bobby brown

Example Input: The Battle of Poltava in 1709 was a victory by Peter the Great over which state?
Example Output: battle of poltava

Example Input: In which country was the 1990 FIFA World Cup held?
Example Output:
1990 fifa world cup