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.

Example Input: Category: elements 
Words: fire, earth, water, blaze, recruit
Example Output: recruit

Example Input: Category: shady activities 
Words: fudge, banned, brownie, unwarranted, fib
Example Output: brownie

Example Input: Category: fried food 
Words: fritter, blueberry, apple, sweet roll, seperate
Example Output:
seperate