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: chocolate food 
Words: brownie, cake, fudge, banned, molasses
Example Output: banned

Example Input: Category: moral characteristic 
Words: frank, stern, bun, concise, precise
Example Output: bun

Example Input: Category: emotional status 
Words: content, food, angry, joyful, jealous
Example Output:
food