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

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

Ex Output:
aconcagua


Ex Input:
What was the first British credit card?

Ex Output:
credit card


Ex Input:
Which artist's final works in the early 1950s were gouaches decoupees or paper cut-outs such as La Negresse and he Blue Nudes?

Ex Output:

blue nude ii