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

Input: Consider Input: Christian Grey is a character in what recent book trilogy?

Output: christian grey


Input: Consider Input: Devil's Tower National Monument in Wyoming, USA features prominently in which landmark 1977 science fiction film?

Output: devils tower


Input: Consider Input: Krist Novoselic and Dave Grohl were two thirds of which band, formed in Aberdeen (Washington State) whose albums include Bleach and In Utero?


Output: dave grohl