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: ghostly, milky, windy, fair, texture

Ex Output:
windy


Ex Input:
Category: type of sandwich 
Words: hoagie, burger, hamburger, club, discothek

Ex Output:
discothek


Ex Input:
Category: police punishment 
Words: jail, fine, bright, arrest, flyaway

Ex Output:

bright