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: food 
Words: provision, frank, hot dog, goodies, harsh

Output: harsh


Input: Consider Input: Category: window material 
Words: metal, handle, dish, glass, vinyl

Output: dish


Input: Consider Input: Category: animal 
Words: waggle, car, bird, leap, fly


Output: car