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

Which was the title of the 7th and final book in the Chronicles of Narnia by C.S. Lewis?
the chronicles of narnia

In which city were the 2002 Winter Olympic Games held?
2002 winter olympics

What autism spectrum disorder was first identified in 1944 due to a study of children who lacked nonverbal communication skills, demonstrated limited empathy with their peers, and were physically clumsy?

autism spectrum