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: bike, beetle, leap, ant, fly

A: bike
****
Q: hardware, firewall, file, format, order office supplies

A: order office supplies
****
Q: fine, classy, there, dull, happy

A:
happy
****