Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

What name was given to the 1950-60s mainstream country music style of artists including Patsy Cline, Tammy Wynette, Jim Reeves, and Charlie Rich?
charlie rich

The wine-producing region of Hunter Valley is in which Australian state?
australia

Which group had a top ten hit with 'Driving in My Car' in 1982?

driving in my car

