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: military rank 
Words: regular, major, general, soldier, cadet

Output: regular


Input: Consider Input: Category: weather 
Words: windy, stormy, fair, tone, tangle

Output: tone


Input: Consider Input: Category: boxing terminology 
Words: fight, blind, apron, deck, caution


Output: blind