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: level, knockout, deck, fight, gunwale

Output: gunwale


Input: Consider Input: hot, optimist, cool, calm, relaxed

Output: hot


Input: Consider Input: content, hearing, fine, happy, alert


Output: hearing