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, jail, arrest, fine, beautiful

SOLUTION: beautiful

PROBLEM: Category: chocolate food 
Words: replace, fudge, cupcake, heavy, cream

SOLUTION: replace

PROBLEM: Category: ocean 
Words: postponed, sea, drink, course, current

SOLUTION:
postponed