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, mild, loyal, alright, trustworthy
[A]: mild


[Q]: emotional state, opposite of up, unhappy, down, miserable
[A]: opposite of up


[Q]: emotional upsets, fret, truss rod, headstock, jack
[A]:
emotional upsets