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: angry, joyful, tools, fearful, content

A: tools
****
Q: tangle, fair, impartial, dishonest, balanced

A: tangle
****
Q: color, fair, milky, brisk, tone

A:
brisk
****