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

Example Input: Which musical has the songs 'Another Suitcase In Another Hall' and 'Oh What A Circus'?
Example Output: another suitcase in another hall

Example Input: What is the name of the astromech droid companion of Anakin Skywalker, Luke Skywalker and Obi-Wan Kenobi in the Star Wars franchise?
Example Output: droid

Example Input: What was the title of Bob the Builder's second UK number one hit single?
Example Output:
bob the builder