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: emotional upsets, pick, emotional state, fret, emotional supports
Example Output: pick

Example Input: deck, dock, galley, joker, hull
Example Output: joker

Example Input: 70, variety, color, fair, light
Example Output:
70