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

[EX Q]: The Briish Airways subsidiary BA Connect was sold to which other airline?
[EX A]: airline

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

[EX Q]: In the 2012 Olympics, who won the gold medal in the Men's Singles at tennis?
[EX A]:
2012 summer olympics