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: bike, flap, fly, walk, wave

Output: walk


Input: Consider Input: level, draw, deck, tko, punch

Output: draw


Input: Consider Input: jail, there, fine, level, classy


Output: jail