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]: elephant, duck, sprint, dog, lion
[EX A]: sprint

[EX Q]: fair, dishonest, make the grade, unjust, well
[EX A]: make the grade

[EX Q]: fat, iron, absorption, heavy, salt
[EX A]:
absorption