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: boxing terminology 
Words: pack, level, deck, corner, jab

Output: pack


Input: Consider Input: Category: police punishment 
Words: probation, suspension, jail, fine, attractive

Output: attractive


Input: Consider Input: Category: animal 
Words: beetle, waggle, fly, leap, soar


Output: soar