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: guitar part 
Words: inlays, concerned, string, notes, fret

Output: concerned


Input: Consider Input: Category: aesthetic characteristic 
Words: trustworthy, variety, tone, ghostly, fair

Output: trustworthy


Input: Consider Input: Category: weather 
Words: fair, sunny, stormy, make the grade, variety


Output: variety