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: up to the moment, tide, current, jetstream, brine

Output: up to the moment


Input: Consider Input: apple, waste, blow, whittle, fritter


Output: apple