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: unlicensed, chocolate, heavy, fudge, chocolate cake

Output: unlicensed


Input: Consider Input: crane, ostrich, davit, dump truck, pelican

Output: dump truck


Input: Consider Input: trap, fish, hiking, wrestle, hamster


Output: hamster