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 status 
Words: down, remorseful, up, emotional supports, shameful

Ex Output:
up


Ex Input:
Category: season 
Words: winter, roll, spring, hiems, fall

Ex Output:
roll


Ex Input:
Category: baby animals 
Words: antling, flatter, fawn, woods, bambi

Ex Output:

flatter