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: police punishment 
Words: prison, fine, calm, money, suspension

Output: calm


Input: Consider Input: Category: weather 
Words: brisk, ghostly, windy, fair, deal

Output: ghostly


Input: Consider Input: Category: aesthetic characteristic 
Words: detailed, high quality, fine, arrest, pretty


Output: arrest