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: draw, deck, call, gunwale, blind

Output: gunwale


Input: Consider Input: angular momentum, fat, calcium, brittleness, ugly

Output: calcium


Input: Consider Input: there, happy, dull, attractive, fine


Output: happy