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: chocolate food 
Words: replace, fudge, cupcake, heavy, cream

Ex Output:
replace


Ex Input:
Category: moral characteristic 
Words: variety, fine, fair, ok, balanced

Ex Output:
variety


Ex Input:
Category: emotional status 
Words: emotionalities, down, right, miserable, ashamed

Ex Output:

right