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:
closest, finished for the day, bordering, nearest, close

Ex Output:
finished for the day


Ex Input:
meeting, community, lettuce, club, cinema

Ex Output:
lettuce


Ex Input:
ok, level, dishonest, unprejudiced, fair

Ex Output:

level