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: windy, fair, just, ok, loyal
Example Output: windy

Example Input: Category: temperature 
Words: cold, hot, cool, popular, relaxing
Example Output: popular

Example Input: Category: moral characteristic 
Words: decent, fair, loyal, ok, even
Example Output:
even