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: replace, fire, retire, air, remove

A: air
****
Q: hatchling, fawn, cute, kid, deer

A: cute
****
Q: jog, walk, fly, run, cockroach

A:
jog
****