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: poker 
Words: blind, chips, queen, gunwale, deck
Example Output: gunwale

Example Input: Category: guitar part 
Words: truss rod, fret, neck, bored, strap lock
Example Output: bored

Example Input: Category: aesthetic characteristic 
Words: variety, clime, medium, fair, milky
Example Output:
clime