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: boats 
Words: deck, call, galley, bridge, stern

Output: call


Input: Consider Input: Category: physical property 
Words: brittleness, protein, bulky, skinny, fat

Output: protein


Input: Consider Input: Category: aesthetic characteristic 
Words: pretty, attractive, fine, neat, flyaway


Output: flyaway