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: boxing terminology 
Words: ring, lifeline, jab, deck, knockout

Output: lifeline


Input: Consider Input: Category: emotional display 
Words: expression, doe, cute, fawn, social


Output: doe