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:
flaxen, fair, sunny, cool, pale

Ex Output:
sunny


Ex Input:
hire, flame, pay, fire, ban

Ex Output:
flame


Ex Input:
shut, close, on top of, near, nearer

Ex Output:

shut