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: dagwood, club, doorstep, hamburger, community
Example Output: community

Example Input: mallet, goose, geese, hike, duck
Example Output: hike

Example Input: fritter, patty, waste away, waste, dally
Example Output:
patty