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:
jog, flap, fly, bee, bus

Ex Output:
bee


Ex Input:
well, honorable, sunny, fair, dishonest

Ex Output:
sunny


Ex Input:
up to the moment, tide, current, jetstream, brine

Ex Output:

up to the moment