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:
blocking, crew, jab, deck, glove

Ex Output:
crew


Ex Input:
stingray, fish, camp, swim, hunt

Ex Output:
stingray


Ex Input:
hardware, firewall, motherboard, file, schedule

Ex Output:

schedule