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: delayed, brine, belated, current, postponed
Example Output: brine

Example Input: level, tone, fair, impartial, milky
Example Output: impartial

Example Input: slow, close, open, right there, not open
Example Output:
right there