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: hamster, mice, fish, tiger, row

Output: row


Input: Consider Input: Category: nutritional value 
Words: fat, protein, vitamin c, fiber, area

Output: area


Input: Consider Input: Category: aesthetic characteristic 
Words: beautiful, high quality, fine, arrest, bright


Output: arrest