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: emotional display 
Words: fawn, antling, lust, suppressed, love

Ex Output:
antling


Ex Input:
Category: chocolate food 
Words: rich, molasses, fudge, brownies, wrongful

Ex Output:
wrongful


Ex Input:
Category: social gathering 
Words: club, discothek, outing, hero, convention

Ex Output:

hero