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]: fly, grasshopper, walk, waggle, train
[A]: train


[Q]: fudge, brownie, unlicensed, cake, pudding
[A]: unlicensed


[Q]: emotionalities, opposite of up, down, miserable, ashamed
[A]:
opposite of up