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.

[Q]: squashed, cabin, flat, smooth, round
[A]: smooth


[Q]: vodka, spider, gin, blackjack, go fish
[A]: vodka


[Q]: probation, suspension, jail, fine, attractive
[A]:
attractive