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.

Input: Consider Input: Category: emotional status 
Words: emotional, ground, ashamed, emotional upsets, down

Output: ground


Input: Consider Input: Category: police punishment 
Words: suspension, arrest, classy, custody, fine

Output: classy


Input: Consider Input: Category: emotional display 
Words: fawn, follow, identity, hatchling, pester


Output: hatchling