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: keys, file, download, folder, type

Output: type


Input: Consider Input: sausage, matter of fact, frank, vittles, grub

Output: matter of fact


Input: Consider Input: software, schedule, file, organize, answer


Output: software