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: kitchenware 
Words: metal, glass, knifer, dish, cup

Output: metal


Input: Consider Input: Category: aesthetic characteristic 
Words: ghostly, milky, windy, fair, texture

Output: windy


Input: Consider Input: Category: police punishment 
Words: fine, suspension, calm, penalty, firstrate


Output: calm