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: widespread 
Words: boring, common, soldier, general, average

Output: soldier


Input: Consider Input: Category: boxing terminology 
Words: deck, corner, blocking, call, box

Output: call


Input: Consider Input: Category: type of rigidity 
Words: firm, leverage, rough, inflexible, taut


Output: leverage