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: personal characteristic 
Words: freezing, calm, positive, cool, popular

Output: freezing


Input: Consider Input: Category: chocolate food 
Words: rich, chocolate, fudge, chocolate cake, unwarranted

Output: unwarranted


Input: Consider Input: Category: baby animals 
Words: love, kid, colt, fawn, kitten


Output: love