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]: order office supplies, sort mail, file, program, type
[EX A]: program

[EX Q]: draw, deck, call, gunwale, blind
[EX A]: gunwale

[EX Q]: ceo, synergy, firm, common, tough
[EX A]:
tough