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: penalty, fine, money, arrest, alright

SOLUTION: alright

PROBLEM: Category: social gathering 
Words: club, bar, dance hall, discothek, roll

SOLUTION: roll

PROBLEM: Category: consumer product 
Words: tools, content, activity, thing, angry

SOLUTION:
angry