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: bow, draw, galley, deck, crew
Example Output: draw

Example Input: group, blt, french toast, hamburger, club
Example Output: group

Example Input: flat, mountain, even, squashed, level
Example Output:
squashed