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:
fair, loyal, decent, fine, tone

Ex Output:
tone


Ex Input:
nervous, bored, emotional supports, chord, fret

Ex Output:
chord


Ex Input:
flaxen, light, fair, medium, tangle

Ex Output:

tangle