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: secretary duty 
Words: organize, sort mail, fax, file, text

Output: text


Input: Consider Input: Category: boxing terminology 
Words: deck, gunwale, level, tko, jab

Output: gunwale


Input: Consider Input: Category: weather 
Words: mild, cold, level, stormy, fair


Output: level