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: fritter, dunker, patty, waste, danish
Example Output: waste

Example Input: fly, fish, flap, bike, glide
Example Output: fish

Example Input: autumn, run, climb, fall, roll
Example Output:
autumn