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:
flaxen, texture, alright, fair, even

Ex Output:
alright


Ex Input:
neat, beautiful, dull, fine, firstrate

Ex Output:
firstrate


Ex Input:
hoist, concrete pourer, excavator, crane, goose

Ex Output:

goose