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: aesthetic characteristic 
Words: honorable, fair, variety, milky, even
Example Output: honorable

Example Input: Category: bird 
Words: flamingo, crane, neck, ostrich, davit
Example Output: davit

Example Input: Category: computers 
Words: file, hardware, schedule, image, download
Example Output:
schedule