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: hunting, goat, camp, trap, fish
Example Output: goat

Example Input: cupcake, fudge, tart, smear, cream
Example Output: smear

Example Input: regular, typical, general, cadet, ordinary
Example Output:
cadet