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: elephant, duck, sprint, dog, lion

Output: sprint


Input: Consider Input: fine, even, unjust, impartial, fair

Output: even


Input: Consider Input: well, milky, light, decent, fair


Output: decent