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: baby animals 
Words: lust, kitten, deer, bambi, fawn

Output: lust


Input: Consider Input: Category: police punishment 
Words: prime, fine, jail, suspension, well

Output: well


Input: Consider Input: Category: emotional status 
Words: ok, alert, attractive, well, fine


Output: attractive