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: shady activities 
Words: replace, unwarranted, pie, fudge, unlicensed

Output: pie


Input: Consider Input: Category: construction 
Words: crane, mallet, winch, tackle, hoist


Output: mallet