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.

Ex Input:
impartial, pale, fair, dishonest, well

Ex Output:
pale


Ex Input:
hoagie, submarine, place, open-faced, club

Ex Output:
place


Ex Input:
trip, jump, fall, equinox, exercise

Ex Output:

equinox