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: shady activities 
Words: falsehood, banned, heavy, unlicensed, fudge

Ex Output:
heavy


Ex Input:
Category: emotional status 
Words: nervous, frustrated, fret, jack, concerned

Ex Output:
jack


Ex Input:
Category: baby animals 
Words: cub, fawn, colt, kitten, cajole

Ex Output:

cajole