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: regular, general, captain, ubiquitous, popular

Output: captain


Input: Consider Input: file, errands, type, folder, order office supplies

Output: folder


Input: Consider Input: not open, steady, close, gated, adjacent


Output: adjacent