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: bow, gunwale, crew, deck, blocking

Output: blocking


Input: Consider Input: bowl, plastic, glass, panel, lead

Output: bowl


Input: Consider Input: canyoning, fish, bat, kayak, hunt


Output: bat