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

[Q]: In which range of mountains are the two highest peaks Aconcagua and Ojos Del Salado?
[A]: aconcagua


[Q]: In 2013 Yahoo purchased which pictures and video microblogging website business that was founded in 2007 in New York City by David Karp?
[A]: yahoo!


[Q]: What are Glastonbury, Coachella, and Bonnaroo?
[A]:
bonnaroo music festival