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: emotional status 
Words: down, melancholy, below, loveful, kind

SOLUTION: below

PROBLEM: Category: personal characteristic 
Words: assured, refreshing, unruffled, cool, positive

SOLUTION: refreshing

PROBLEM: Category: weather 
Words: fair, cold, warm, deal, ok

SOLUTION:
ok