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: prepare, space, file, image, ram
Example Output: prepare

Example Input: Category: aesthetic characteristic 
Words: neat, alright, beautiful, level, fine
Example Output: alright

Example Input: Category: boxing terminology 
Words: deck, glove, corner, sail, level
Example Output:
sail