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.

Q: parrot, goose, crane, swallow, excavator

A: excavator
****
Q: fair, well, milky, medium, loyal

A: loyal
****
Q: falsehood, banned, heavy, unlicensed, fudge

A:
heavy
****