instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
Which horse won the 2008 Grand National?
answer:
2008 grand national

question:
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?
answer:
and another thing...

question:
Which boyband represented the UK in the 2011 Eurovision Song Contest?
answer:
boy band