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.

Example Input: smooshed, horizontal, condominium, flat, valley
Example Output: condominium

Example Input: fritter, apple, divide, blueberry, danish
Example Output: divide

Example Input: happy, fine, mad, level, decent
Example Output:
level