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]: group, clan, hamburger, club, bar
[EX A]: hamburger

[EX Q]: fritter, apple, divide, blueberry, danish
[EX A]: divide

[EX Q]: glass, spyhole, knife, fiberglass, metal
[EX A]:
knife