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: blocking, corner, deck, fight, hearts
Example Output: hearts

Example Input: sausage, matter of fact, frank, vittles, grub
Example Output: matter of fact

Example Input: lust, fawn, woods, swoon, cute
Example Output:
woods