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

Ex Input:
Carpo and Elara are moons of which planet?

Ex Output:
elara


Ex Input:
In what language was The Communist Manifesto written?

Ex Output:
the communist manifesto


Ex Input:
The Impressionist movement got its name from a painting Impression Sunrise exhibited in 1874; who was the artist?

Ex Output:

impression, sunrise