instruction:
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:
What was the last silent film in which Chaplin's little tramp appeared?
answer:
chaplin


question:
Whose parents were Edmund Tudor and Margaret Beaufort?
answer:

margaret beaufort