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: baby animals 
Words: cub, identity, buck, fawn, kid

Ex Output:
identity


Ex Input:
Category: police punishment 
Words: wispy, fine, probation, calm, prime

Ex Output:
calm


Ex Input:
Category: moral characteristic 
Words: well, honorable, sunny, fair, dishonest

Ex Output:

sunny