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: aesthetic characteristic 
Words: well, windy, even, fair, level

Output: windy


Input: Consider Input: Category: physical activity 
Words: summer, roll, plummet, fall, exercise

Output: summer


Input: Consider Input: Category: consumer product 
Words: content, food, program, joyful, books


Output: joyful