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]: hunt, whale, shark, fish, mice
[A]: hunt


[Q]: fiber, big boned, protein, carbs, fat
[A]: big boned


[Q]: relaxing, optimist, cool, classy, relaxed
[A]:
relaxing