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: prime, penalty, fine, mad, arrest

SOLUTION: mad

PROBLEM: Category: date status 
Words: postponed, timely, early, current, jetstream

SOLUTION: jetstream

PROBLEM: Category: corporate 
Words: corporation, firm, alignment, taut, leverage

SOLUTION:
taut