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:
misuse, danish, fritter, dally, whittle

Ex Output:
danish


Ex Input:
drink, detestings, whirlpool, main, current

Ex Output:
detestings


Ex Input:
lifeline, jab, punch, deck, box

Ex Output:

lifeline