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:
balanced, well, milky, size, fair

Ex Output:
balanced


Ex Input:
variety, endure, level, fair, milky

Ex Output:
endure


Ex Input:
smuggled, fudge, cupcake, fix, lie

Ex Output:

cupcake