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

Input: Consider Input: Chep Lap Kok airport is located where?

Output: hong kong international airport


Input: Consider Input: The Neil Simon plays The Prisoner of Second Avenue and Brighton Beach Memoirs are set in which city?

Output: brighton beach memoirs


Input: Consider Input: From which popular musical do we get the songs 'The Impossible Dream' and 'Dulcinea'?


Output: the impossible dream