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: moral characteristic 
Words: concise, brash, integrity, cheese, frank

Output: cheese


Input: Consider Input: Category: boxing terminology 
Words: canvas, tko, deck, joker, fight

Output: joker


Input: Consider Input: Category: emotional status 
Words: truss rod, fret, nervous, worried, emotional supports


Output: truss rod