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]: bike, flap, fly, walk, wave
[EX A]: walk

[EX Q]: hot, classy, pretty, fine, probation
[EX A]: probation

[EX Q]: run, walk, beetle, fly, drive
[EX A]:
drive