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: level, flat, apartment, squashed, lined

Output: lined


Input: Consider Input: blocking, fold, deck, check, board

Output: blocking


Input: Consider Input: cupcake, fudge, smear, chocolate cake, brownie


Output: smear