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:
protein, chunky, big boned, fat, capacitance

Ex Output:
protein


Ex Input:
pale, windy, fair, flaxen, light

Ex Output:
windy


Ex Input:
remorseful, down, descending, lower, falling

Ex Output:

remorseful