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

Ex Input:
Will you still be sending me a valentine is a line from which Beatles song?

Ex Output:
the beatles


Ex Input:
Where is Charles Darwin buried?

Ex Output:
charles darwin


Ex Input:
Who wrote numerous short stories and plays and the novels Of Human Bondage, The Moon And Sixpence and Cakes And Ale?

Ex Output:

of human bondage