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

The Neil Simon plays The Prisoner of Second Avenue and Brighton Beach Memoirs are set in which city?
brighton beach memoirs

Who wrote `20,000 Leagues Under The Sea`?
20,000 leagues under the sea

Allopurinol is typically prescribed for which illness?

allopurinol