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:
team, french toast, club, bacon, hamburger

Ex Output:
team


Ex Input:
folder, hardware, file, firewall, support

Ex Output:
support


Ex Input:
down, ground, forward, emotional state, left

Ex Output:

emotional state