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:
chunky, fat, calcium, carbs, iron

Ex Output:
chunky


Ex Input:
flat, level, mansion, smooshed, elevation

Ex Output:
mansion


Ex Input:
emotionalities, lower, down, ground, downward

Ex Output:

emotionalities