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: widespread 
Words: regular, colonel, typical, ordinary, general

Output: colonel


Input: Consider Input: Category: guitar part 
Words: fret, worried, chord, notes, headstock

Output: worried


Input: Consider Input: Category: consumer product 
Words: happy, content, thing, books, program


Output: happy