Given a category and a set of five words, find the word from the set that does not belong (i.e. is the least relevant) with the other words in the category. Words are separated by commas.

Input: Consider Input: Category: animal 
Words: shark, dolphin, fish, hunting, cat

Output: hunting


Input: Consider Input: Category: physical property 
Words: sugars, obese, big boned, fat, pasty

Output: sugars


Input: Consider Input: Category: fried food 
Words: sweet roll, cake, fried, fritter, waste away


Output: waste away