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]: fire, instruct, inferno, retire, scold
[EX A]: inferno

[EX Q]: recruit, replace, sack, heat, fire
[EX A]: heat

[EX Q]: grasshopper, beetle, flutter, pounce, fly
[EX A]:
flutter