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]: loveful, up, down, remorseful, melancholy
[A]: up


[Q]: cards, deck, suits, box, fold
[A]: box


[Q]: spider, beetle, fly, bats, bus
[A]:
bus