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: entree, honest, loyalty, frank, fortitude
Example Output: entree

Example Input: hull, galley, deck, lifeline, tko
Example Output: tko

Example Input: chocolate, falsehood, fudge, pie, pudding
Example Output:
falsehood