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: fair, raining, trustworthy, endure, 70
Example Output: trustworthy

Example Input: vittles, integrity, cheese, pork, frank
Example Output: integrity

Example Input: emotional state, sliding, emotional supports, down, ashamed
Example Output:
sliding