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.

Ex Input:
Category: shady activities 
Words: falsification, wrongful, rich, fudge, unlicensed

Ex Output:
rich


Ex Input:
Category: consumer product 
Words: content, books, thing, program, jealous

Ex Output:
jealous


Ex Input:
Category: guitar part 
Words: bored, amp, board, fret, truss rod

Ex Output:

bored