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: neat, beautiful, dull, fine, firstrate

Output: firstrate


Input: Consider Input: format, file, support, text, download

Output: support


Input: Consider Input: smear, fudge, unlicensed, fix, rich


Output: rich