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:
icy, hot, cool, refreshing, relaxed

Ex Output:
relaxed


Ex Input:
sugars, obese, big boned, fat, pasty

Ex Output:
sugars


Ex Input:
general, sergeant, admiral, cadet, standard

Ex Output:

standard