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:
tko, ring, corner, hearts, deck

Ex Output:
hearts


Ex Input:
fiber, big boned, protein, carbs, fat

Ex Output:
big boned


Ex Input:
jail time, fine, mad, wispy, custody

Ex Output:

mad