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: tackle, davit, swift, crane, steam roller

Output: steam roller


Input: Consider Input: descending, remorseful, down, right, ground

Output: remorseful


Input: Consider Input: row, fish, iguana, hunting, hunt


Output: iguana