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: computers 
Words: download, file, order office supplies, document, motherboard
Example Output: order office supplies

Example Input: Category: type of sandwich 
Words: grilled cheese, french toast, outing, burger, club
Example Output: outing

Example Input: Category: aesthetic characteristic 
Words: well, milky, variety, tone, fair
Example Output:
well