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:
sausage, hot dog, concise, frank, weenie

Ex Output:
concise


Ex Input:
unyielding, concerted, firm, combined, united

Ex Output:
unyielding


Ex Input:
right there, nearest, on top of, close, finished for the day

Ex Output:

finished for the day