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:
dagwood, club, doorstep, hamburger, community

Ex Output:
community


Ex Input:
close, nearest, touching, on top of, barred

Ex Output:
barred


Ex Input:
galley, level, punch, ring, deck

Ex Output:

galley