TASK DEFINITION: Given a category and a set of five words, find the word from the set that does not belong (i.e. is the least relevant) with the other words in the category. Words are separated by commas.
PROBLEM: Category: aesthetic characteristic 
Words: pretty, probation, neat, fine, level

SOLUTION: probation

PROBLEM: Category: nutritional value 
Words: fat, protein, vitamin c, fiber, area

SOLUTION: area

PROBLEM: Category: moral characteristic 
Words: fair, impartial, tone, well, balanced

SOLUTION:
tone