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]: signal, sea, current, drink, belated
[A]: belated


[Q]: answer calls, image, organize, file, correspondence
[A]: image


[Q]: united, leverage, firm, taut, private
[A]:
taut