Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
--------
Question: Which poem by Keats and novel by Disraeli both have the same title?

Answer: john keats

Question: Christian Grey is a character in what recent book trilogy?

Answer: christian grey

Question: Which cast member played the piano in the original Beyond the Fringe satirical revue of the early Sixties ?

Answer:
beyond the fringe