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: emotional status 
Words: worried, angry, jack, fret, emotional upsets

Output: jack


Input: Consider Input: Category: moral characteristic 
Words: unprejudiced, warm, fair, ok, balanced

Output: warm


Input: Consider Input: Category: boxing terminology 
Words: knockout, fight, call, deck, caution


Output: call