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]: glass, wood, coating, knifer, woodwork
[EX A]: knifer

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

[EX Q]: flat, mountain, studio, hill, plane
[EX A]:
studio