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

Ex Input:
Which country on the West African coast lies between The Democratic Republic of the Congo and Namibia?

Ex Output:
democratic republic of the congo


Ex Input:
What was the first Apollo mission to leave Earth orbit and orbit the moon, in 1968?

Ex Output:
apollo


Ex Input:
Mariah Carey was joined by which group on the 2000 single 'Against All Odds'?

Ex Output:

against all odds