TASK DEFINITION: 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.
PROBLEM: fair, dishonest, make the grade, unjust, well

SOLUTION: make the grade

PROBLEM: brownie, fudge, wrongful, mangle, loosen

SOLUTION: brownie

PROBLEM: dolphin, bat, cat, fish, hiking

SOLUTION:
hiking