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:
fearful, food, content, nervous, excited

Ex Output:
food


Ex Input:
draw, deck, call, gunwale, blind

Ex Output:
gunwale


Ex Input:
merchandise, specialty, tools, content, angry

Ex Output:

angry