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: weather 
Words: tangle, ghostly, fair, raining, sunny

Output: ghostly


Input: Consider Input: Category: emotional status 
Words: sad, remorseful, down, ashamed, sliding

Output: sliding


Input: Consider Input: Category: boxing terminology 
Words: board, fight, corner, deck, canvas


Output: board