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: ok, neat, fine, attractive, beautiful

A: ok
****
Q: recruit, replace, sack, heat, fire

A: heat
****
Q: space, file, hardware, firewall, order office supplies

A:
order office supplies
****