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: emotionalities, opposite of up, down, miserable, ashamed

Output: opposite of up


Input: Consider Input: format, image, fax, file, folder

Output: fax


Input: Consider Input: fine, attractive, dull, there, firstrate


Output: firstrate