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.

[EX Q]: well, clime, milky, fair, size
[EX A]: clime

[EX Q]: fair, color, unprejudiced, fine, decent
[EX A]: color

[EX Q]: string, emotional state, worried, fret, nervous
[EX A]:
string