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: neat, beautiful, dull, fine, firstrate

Output: firstrate


Input: Consider Input: handsome, dull, flyaway, attractive, fine

Output: flyaway


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


Output: discothek