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: police punishment 
Words: prime, fine, jail, suspension, well

Output: well


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

Output: discothek


Input: Consider Input: Category: boats 
Words: dock, crew, ring, rudder, deck


Output: ring