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: ocean 
Words: current, early, water, brine, tide

Output: early


Input: Consider Input: Category: emotional status 
Words: acceptable, fine, neat, relaxed, annoyed

Output: neat


Input: Consider Input: Category: animal 
Words: pounce, fly, swim, walk, walk


Output: walk