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: physical activity 
Words: drop, fall, leaves, bend, exercise

Output: leaves


Input: Consider Input: Category: aesthetic characteristic 
Words: 70, variety, color, fair, light

Output: 70


Input: Consider Input: Category: shady activities 
Words: cookies, replace, fudge, banned, lie


Output: cookies