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

Ex Input:
Who died of a burst appendix after being punched in the stomach?

Ex Output:
appendicitis


Ex Input:
In which book of the Bible are the Ten Commandments first mentioned?

Ex Output:
bible


Ex Input:
What name describes the group of chemical elements that includes Chlorine, Bromine, Iodine and Fluorine?

Ex Output:

fluorine