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: dull, fine, handsome, detailed, jail time
Example Output: jail time

Example Input: alright, size, dishonest, fine, fair
Example Output: size

Example Input: joyful, program, activity, food, content
Example Output:
joyful