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:
goodies, sausage, frank, bold, entree

Ex Output:
bold


Ex Input:
fire, instruct, inferno, retire, scold

Ex Output:
inferno


Ex Input:
just, dishonest, fair, flaxen, decent

Ex Output:

flaxen