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: ecstatic, content, disappointed, sad, service

Output: service


Input: Consider Input: fat, vitamin c, area, brittleness, absorption


Output: vitamin c