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: physical property 
Words: sugars, obese, big boned, fat, pasty

Ex Output:
sugars


Ex Input:
Category: emotional display 
Words: fawn, antling, lust, suppressed, love

Ex Output:
antling


Ex Input:
Category: shady activities 
Words: loosen, smear, invent, fudge, pie

Ex Output:

pie