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:
spatula, panel, plastic, glass, translucent fabric

Ex Output:
spatula


Ex Input:
sail, bow, blind, dock, deck

Ex Output:
blind


Ex Input:
stormy, fair, tangle, variety, luke

Ex Output:

variety