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.

Example Input: answer, answer calls, space, file, schedule
Example Output: space

Example Input: fair, well, milky, medium, loyal
Example Output: loyal

Example Input: dishonest, honorable, milky, trustworthy, fair
Example Output:
milky