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: emotionalities, opposite of up, down, miserable, ashamed
Example Output: opposite of up

Example Input: entree, honest, loyalty, frank, fortitude
Example Output: entree

Example Input: prison, fine, flyaway, hot, firstrate
Example Output:
hot