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: crew, ring, deck, blocking, punch

Output: crew


Input: Consider Input: social, love, fawn, follow, kid

Output: kid


Input: Consider Input: cajole, expression, paw, fawn, kid


Output: kid