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: sergeant, general, standard, plain, ordinary

A: sergeant
****
Q: fair, loyal, decent, fine, tone

A: tone
****
Q: windlass, flamingo, hummingbird, crane, swallow

A:
windlass
****