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: inlays, concerned, string, notes, fret

Output: concerned


Input: Consider Input: level, knockout, deck, fight, gunwale

Output: gunwale


Input: Consider Input: condominium, squashed, valley, paved, flat


Output: valley