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.

Example Input: Category: moral characteristic 
Words: honorable, balanced, fair, pale, trustworthy
Example Output: pale

Example Input: Category: emotional status 
Words: kind, down, sad, backward, emotionalities
Example Output: backward

Example Input: Category: chocolate food 
Words: fudge, chocolate, chocolate cake, smuggled, brownie
Example Output:
smuggled