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: provision, frank, hot dog, goodies, harsh

Output: harsh


Input: Consider Input: 70, just, impartial, unprejudiced, fair


Output: 70