Given a set of five words, generate the word from the set that does not belong (i.e. is the least relevant) with the other words. Words are separated by commas.

Input: Consider Input: chunky, fat, calcium, carbs, iron

Output: chunky


Input: Consider Input: file, prepare, document, space, folder

Output: prepare


Input: Consider Input: emotional upsets, loveful, unhappy, left, down


Output: left