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: group, clan, hamburger, club, bar

Output: hamburger


Input: Consider Input: camp, fish, iguana, hike, kayak

Output: iguana


Input: Consider Input: order office supplies, image, download, file, folder


Output: order office supplies