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: fair, impartial, tone, well, balanced

A: tone
****
Q: current, wave, whirlpool, sea, data sets

A: data sets
****
Q: normal, commander, sargent, private, general

A:
normal
****