instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
The Battle of Poltava in 1709 was a victory by Peter the Great over which state?
answer:
battle of poltava


question:
In which country did the dance The Czardas originate?
answer:
csardas


question:
Who had a Case of the Ex in 2001?
answer:

case of the ex