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]: ok, wispy, jail, prime, fine
[EX A]: ok

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

[EX Q]: brisk, size, light, fair, cool
[EX A]:
brisk