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: shady activities 
Words: fudge, banned, brownie, unwarranted, fib

Output: brownie


Input: Consider Input: Category: elements 
Words: ban, fire, combustion, ground, flame

Output: ban


Input: Consider Input: Category: outdoor sport activity 
Words: hunt, cow, fish, hiking, canoe


Output: cow