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: descending, disgusted, emotionalities, emotional supports, down
Example Output: descending

Example Input: unwarranted, fudge, pudding, lie, unlicensed
Example Output: pudding

Example Input: space, support, schedule appointments, errands, file
Example Output:
space