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]: finger, heel, foot, ounce, elbow
[EX A]: ounce

[EX Q]: firm, shareholders, common, alignment, taut
[EX A]: taut

[EX Q]: unruffled, refreshing, cool, mild, freezing
[EX A]:
unruffled