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: there, ticket, fine, dull, level

Ex Output:
ticket


Ex Input:
Category: emotional status 
Words: high quality, fine, annoyed, relaxed, ok

Ex Output:
high quality


Ex Input:
Category: aesthetic characteristic 
Words: fair, light, cold, tone, ghostly

Ex Output:

cold