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: fine, firstrate, ticket, money, handsome
Example Output: handsome

Example Input: dog, push, duck, squat, jog
Example Output: dog

Example Input: delayed, course, history, belated, current
Example Output:
course