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: poker 
Words: punch, pack, deck, check, fold

Output: punch


Input: Consider Input: Category: geographical property 
Words: paved, even, hill, level, flat

Output: even


Input: Consider Input: Category: physical property 
Words: capacitance, ugly, fat, skinny, vitamin c


Output: vitamin c