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

Ex Input:
What is the name of the co-founder of Apple Computers who died in October 2011?

Ex Output:
apple inc.


Ex Input:
Which group had UK top ten hits in 1987 with 'Sweet Little Mystery' and 'Angel Eyes'?

Ex Output:
angel eyes


Ex Input:
Which Greek hero married Andromeda?

Ex Output:

andromeda