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: direction 
Words: right, descending, down, opposite of up, emotional supports
Example Output: emotional supports

Example Input: Category: fried food 
Words: apple, whittle, dumpling, fritter, pie
Example Output: whittle

Example Input: Category: boats 
Words: lifeline, stern, fold, deck, rudder
Example Output:
fold