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]: club, hero, lettuce, bar, toast
[A]: bar


[Q]: jog, cow, hike, duck, crouch
[A]: cow


[Q]: club, picnic, french toast, roll, lettuce
[A]:
picnic