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: mild, cold, level, stormy, fair

SOLUTION: level

PROBLEM: jail, probation, fine, classy, firstrate

SOLUTION: classy

PROBLEM: ugly, protein, large, heavy, fat

SOLUTION:
protein