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: moral characteristic 
Words: fair, well, impartial, alright, stormy

Ex Output:
stormy


Ex Input:
Category: weather 
Words: brisk, ghostly, windy, fair, deal

Ex Output:
ghostly


Ex Input:
Category: bird 
Words: crane, hoist, egret, tackle, ostrich

Ex Output:

hoist