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: down, remorseful, up, emotional supports, shameful

Output: up


Input: Consider Input: Category: poker 
Words: call, sail, deck, board, queen

Output: sail


Input: Consider Input: Category: physical property 
Words: protein, pasty, fat, thin, angular momentum


Output: protein