instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
Which Bob Dylan song begins You got a lotta nerveTo say you are my friend. When I was down, You just stood there grinning?
answer:
bob dylan


question:
Eden Park staged some of the 2011 Rugby World Cup matches, in which city can it be found?
answer:
eden park


question:
Ben Hogan, Sam Snead and Byron Nelson competed against each other in the 1940s in which sport?
answer:

sam snead