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:
even, light, dishonest, variety, fair

Ex Output:
dishonest


Ex Input:
duplex, studio, flat, paved, squashed

Ex Output:
paved


Ex Input:
fall, duck, swan, hike, get down

Ex Output:

swan