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:
wine, rum, bridge, tonic, gin

Ex Output:
bridge


Ex Input:
banned, fudge, invent, cupcake, loosen

Ex Output:
cupcake


Ex Input:
frank, hot dog, provision, brash, sausage

Ex Output:

brash