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: police punishment 
Words: probation, suspension, jail, fine, attractive

SOLUTION: attractive

PROBLEM: Category: animal 
Words: trap, dog, fish, tiger, horse

SOLUTION: trap

PROBLEM: Category: aesthetic characteristic 
Words: color, variety, well, fair, decent

SOLUTION:
decent