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: exquisite, dull, high quality, fine, acceptable

Output: acceptable


Input: Consider Input: hunt, fish, stingray, dolphin, bat

Output: hunt


Input: Consider Input: pester, calf, fawn, expression, social


Output: calf