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:
falsification, banned, mangle, chocolate cake, fudge

Ex Output:
chocolate cake


Ex Input:
firm, tough, solid, hard, streamline

Ex Output:
streamline


Ex Input:
antling, flatter, fawn, woods, bambi

Ex Output:

flatter


