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.

Input: Consider Input: down, kind, ashamed, sliding, unhappy

Output: sliding


Input: Consider Input: fib, fudge, fix, cookies, falsehood

Output: cookies


Input: Consider Input: even, brisk, fair, pale, light


Output: brisk