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: remorseful, flat, melancholy, down, shameful

Output: flat


Input: Consider Input: color, variety, well, fair, decent

Output: decent


Input: Consider Input: hiking, fish, canoe, horse, wrestle


Output: horse