instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
Bound for Glory is the 1943 autobiography of which singer-songwriter?
answer:
bound for glory


question:
Krist Novoselic and Dave Grohl were two thirds of which band, formed in Aberdeen (Washington State) whose albums include Bleach and In Utero?
answer:
dave grohl


question:
Charlotte is the largest city by population in which American state?
answer:

charlotte, north carolina