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: folder, hardware, file, firewall, support

A: support
****
Q: fudge, banned, brownie, unwarranted, fib

A: brownie
****
Q: sergeant, lieutenant, fighter, general, ordinary

A:
ordinary
****