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]: duck, cat, stoop, swan, goose
[A]: stoop


[Q]: organize, support, text, sort mail, file
[A]: text


[Q]: exquisite, pretty, attractive, fine, mad
[A]:
mad