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

Example Input: The plays 'The Barber of Seville' and 'Marriage of Figaro' were written by whom?
Example Output: the marriage of figaro

Example Input: The wine-producing region of Hunter Valley is in which Australian state?
Example Output: australia

Example Input: In the film 'The Lion, The Witch And The Wardrobe', who is the voice of 'Aslan'?
Example Output:
the chronicles of narnia: the lion, the witch and the wardrobe