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

Which popular animated characters, first seen in 1996 include many different characters including ones called Ash Ketchum, Tracy Sketchit and Gar Oak?
tracy

Which composer's oratorios include 'The Kingdom' and 'The Dream of Gerontius'?
the dream of gerontius

The majority of the Amazon Rainforest is contained within which country?

amazon