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: downward, unhappy, down, shameful, disgusted

Output: downward


Input: Consider Input: Category: window material 
Words: panel, translucent fabric, spatula, metal, glass

Output: spatula


Input: Consider Input: Category: boxing terminology 
Words: deck, punch, crew, jab, fight


Output: crew