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: suspension, arrest, classy, custody, fine

SOLUTION: classy

PROBLEM: Category: kitchenware 
Words: metal, glass, knifer, dish, cup

SOLUTION: metal

PROBLEM: Category: police punishment 
Words: exquisite, fine, arrest, prime, suspension

SOLUTION:
exquisite