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: truss rod, emotional supports, emotional upsets, emotionalities, fret

SOLUTION: truss rod

PROBLEM: neat, alright, beautiful, level, fine

SOLUTION: alright

PROBLEM: big boned, area, protein, skinny, fat

SOLUTION:
protein