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: computers 
Words: prepare, space, file, image, ram

Output: prepare


Input: Consider Input: Category: type of sandwich 
Words: submarine, burger, bar, lettuce, club

Output: bar


Input: Consider Input: Category: physical property 
Words: absorption, fat, big, heavy, angular momentum


Output: big