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: animal 
Words: jog, jump, fish, fly, bats

Output: jog


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

Output: worried


Input: Consider Input: Category: boats 
Words: deck, rudder, cards, dock, lifeline


Output: cards