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: hoist, neck, concrete pourer, hummingbird, crane
Example Output: concrete pourer

Example Input: dog, push, duck, squat, jog
Example Output: dog

Example Input: unwarranted, unlicensed, fib, fudge, brownies
Example Output:
brownies