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:
hunt, whale, shark, fish, mice

Ex Output:
hunt


Ex Input:
tangle, fair, impartial, dishonest, balanced

Ex Output:
tangle


Ex Input:
sugar, fiber, fat, calories, capacitance

Ex Output:

capacitance