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: luke, make the grade, fair, milky, deal

SOLUTION: milky

PROBLEM: crew, ring, deck, blocking, punch

SOLUTION: crew

PROBLEM: emotional upsets, fret, emotional, neck, concerned

SOLUTION:
neck