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: color, variety, well, fair, decent

A: decent
****
Q: order office supplies, file, errands, prepare, motherboard

A: motherboard
****
Q: concerned, fret, emotional, string, emotional upsets

A:
string
****