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.

Ex Input:
Category: aesthetic characteristic 
Words: fine, ticket, dull, neat, detailed

Ex Output:
ticket


Ex Input:
Category: physical activity 
Words: run, jump, autumn, fall, swim

Ex Output:
autumn


Ex Input:
Category: physical activity 
Words: crouch, get down, fall, dog, duck

Ex Output:

dog