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:
dally, waste away, fried, whittle, fritter

Ex Output:
fried


Ex Input:
acceptable, fine, comfortable, pretty, well

Ex Output:
pretty


Ex Input:
rich, fix, fudge, lie, unlicensed

Ex Output:

rich