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

Example Input: In which range of mountains are the two highest peaks Aconcagua and Ojos Del Salado?
Example Output: aconcagua

Example Input: Who had a hit album in 2010 with Can't Be Tamed?
Example Output: can't be tamed

Example Input: Between 1901 and 1904 Which painter's career was described as his 'Blue period' ?
Example Output:
picasso's blue period