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

Example Input: Who plays Isobel Crawley in the UK television series 'Downton Abbey'?
Example Output: downton abbey

Example Input: Which popular animated characters, first seen in 1996 include many different characters including ones called Ash Ketchum, Tracy Sketchit and Gar Oak?
Example Output: tracy

Example Input: Alphabetically, which is the last state in Australia?
Example Output:
australia