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: animal 
Words: shark, dolphin, fish, hunting, cat
Example Output: hunting

Example Input: Category: poker 
Words: level, blind, pack, draw, deck
Example Output: level

Example Input: Category: aesthetic characteristic 
Words: detailed, level, jail time, attractive, fine
Example Output:
jail time