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]: blue, current, drink, water, prompt
[A]: prompt


[Q]: emotional upsets, emotional supports, down, ashamed, up
[A]: up


[Q]: close, not open, nearest, busy, finished for the day
[A]:
nearest