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

Ex Input:
The Battle of Poltava in 1709 was a victory by Peter the Great over which state?

Ex Output:
battle of poltava


Ex Input:
Dreams from my father, a story of race and heritance is about which politician?

Ex Output:
dreams from my father


Ex Input:
Who wrote the 1865 novel 'Alice's Adventures in Wonderland'?

Ex Output:

alice's adventures in wonderland