Given a set of five words, generate the word from the set that does not belong (i.e. is the least relevant) with the other words. Words are separated by commas.

Input: Consider Input: hamburger, club, discothek, lettuce, dagwood

Output: discothek


Input: Consider Input: neat, fine, classy, penalty, high quality

Output: penalty


Input: Consider Input: scold, water, fire, praise, replace


Output: water