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: truss rod, pick, chord, worried, fret

Output: worried


Input: Consider Input: suits, level, deck, fight, ring


Output: suits