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: well, clime, milky, fair, size

A: clime
****
Q: hoist, sandpiper, crane, swallow, heron

A: hoist
****
Q: horse, fish, hunt, swim, climbing

A:
horse
****