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: computers 
Words: folder, text, file, ram, prepare

SOLUTION: prepare

PROBLEM: Category: police punishment 
Words: fine, prime, firstrate, comfortable, ticket

SOLUTION: comfortable

PROBLEM: Category: emotional status 
Words: unhappy, melancholy, down, opposite of up, loveful

SOLUTION:
opposite of up