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: activity 
Words: blow, waste away, sweet roll, whittle, fritter

Output: sweet roll


Input: Consider Input: Category: aesthetic characteristic 
Words: high quality, fine, attractive, alright, level

Output: alright


Input: Consider Input: Category: shady activities 
Words: fib, fudge, falsehood, invent, cake


Output: cake