Given a set of five words, generate the word from the set that does not belong (i.e. is the least relevant) with the other words. Words are separated by commas.

Input: Consider Input: fret, notes, emotional state, bored, emotional upsets

Output: notes


Input: Consider Input: fair, endure, mild, color, tangle

Output: color


Input: Consider Input: cupcake, cream, fudge, cookies, unwarranted


Output: unwarranted