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

Example Input: Richard Block and David Quayle founded which British-based DIY retailing company in 1969?
Example Output: david quayle

Example Input: Which was the title of the 7th and final book in the Chronicles of Narnia by C.S. Lewis?
Example Output: the chronicles of narnia

Example Input: On the death of Horatio Nelson, who assumed command at the 'Battle of Trafalgar'?
Example Output:
battle of trafalgar