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: sea turtle, whale, dog, fish, hunting

Output: hunting


Input: Consider Input: schedule, errands, file, schedule appointments, hardware

Output: hardware


Input: Consider Input: sail, glove, blocking, box, deck


Output: sail