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.

Input: Consider Input: Category: boats 
Words: deck, call, galley, bridge, stern

Output: call


Input: Consider Input: Category: aesthetic characteristic 
Words: high quality, fine, attractive, alright, level

Output: alright


Input: Consider Input: Category: moral characteristic 
Words: trustworthy, impartial, fair, light, balanced


Output: light