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.

[EX Q]: sustainability, firm, amalgamated, combined, rigged
[EX A]: rigged

[EX Q]: alright, detailed, annoyed, fine, calm
[EX A]: detailed

[EX Q]: level, caution, ring, fold, deck
[EX A]:
fold