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: miserable, ground, up, opposite of up, down
Example Output: miserable

Example Input: blunt, sausage, hot dog, frank, wienerwurst
Example Output: blunt

Example Input: stormy, fair, just, mild, brisk
Example Output:
just