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: variety, fine, fair, ok, balanced

Ex Output:
variety


Ex Input:
Category: bird 
Words: crane, pelican, egret, hummingbird, upraise

Ex Output:
upraise


Ex Input:
Category: chocolate food 
Words: loosen, cake, cream, fudge, truffles

Ex Output:

loosen