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: fair, even, milky, ghostly, luke

Output: luke


Input: Consider Input: gated, right there, not open, barred, close

Output: right there


Input: Consider Input: nearer, close, near, busy, bordering


Output: busy