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, unprejudiced, impartial, honorable, variety
Example Output: variety

Example Input: mild, cold, level, stormy, fair
Example Output: level

Example Input: fly, leap, glide, car, bike
Example Output:
leap