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: fearful, food, content, nervous, excited

Output: food


Input: Consider Input: file, keys, document, fax, ram

Output: fax


Input: Consider Input: lust, swoon, cajole, fawn, bambi


Output: bambi