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

Allopurinol is typically prescribed for which illness?
allopurinol

James Dearden wrote which book, made into a famous film directed by Adrian Lyne, in 1987?
adrian lyne

In Dante's Divine Comedy, if Hell is divided into 9 circles and Paradise into 9 spheres, what is divided into 7 terraces?

divine comedy