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

Ex Input:
According to the bible, Zaccariah was the father of which New Testament figure?

Ex Output:
bible


Ex Input:
And Another Thing... by Eoin Colfer, published in 2009, eight years after the death of the author of the first five, is described as the sixth in which trilogy of books?

Ex Output:
and another thing...


Ex Input:
In which UK TV series did Ronnie Barker play Arkwright and David Jason play his nephew Granville?

Ex Output:

david jason