instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
Pirate Edward Teach was better known by what nickname?
answer:
edward teach


question:
In America, as what was Bill Shoemaker famous?
answer:
bill shoemaker


question:
Who wrote, directed, and starred in Citizen Kane?
answer:

citizen kane