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.

Ex Input:
Category: weather 
Words: brisk, fair, sunny, cold, balanced

Ex Output:
balanced


Ex Input:
Category: direction 
Words: down, lower, emotional upsets, below, falling

Ex Output:
emotional upsets


Ex Input:
Category: aesthetic characteristic 
Words: medium, decent, fair, light, variety

Ex Output:

decent