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:
unflappalbe, refreshing, funny, cool, confident

Ex Output:
refreshing


Ex Input:
flaxen, texture, alright, fair, even

Ex Output:
alright


Ex Input:
emotionalities, notes, jack, fret, output cord

Ex Output:

emotionalities