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:
hatchling, fawn, cute, kid, deer

Ex Output:
cute


Ex Input:
egret, crane, goose, dump truck, duck

Ex Output:
dump truck


Ex Input:
falling, down, emotionalities, right, downward

Ex Output:

emotionalities