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:
unwarranted, fudge, pudding, lie, unlicensed

Ex Output:
pudding


Ex Input:
crane, davit, swift, upraise, hoist

Ex Output:
swift


Ex Input:
duck, jog, cat, pig, mallet

Ex Output:

jog