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.

Ex Input:
misuse, danish, fritter, dally, whittle

Ex Output:
danish


Ex Input:
knockout, blocking, crew, tko, deck

Ex Output:
crew


Ex Input:
gin, tonic, rum, spider, tequila

Ex Output:

spider