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: concerned, bored, emotional, fret, output cord

Output: output cord


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

Output: cookies


Input: Consider Input: fair, level, unprejudiced, variety, size


Output: unprejudiced