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, make the grade, trustworthy, alright, just

SOLUTION: make the grade

PROBLEM: keys, file, download, folder, type

SOLUTION: type

PROBLEM: bike, beetle, leap, ant, fly

SOLUTION:
bike