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:
annoyed, fine, exquisite, alert, ok

Ex Output:
exquisite


Ex Input:
sugars, fat, protein, skinny, iron

Ex Output:

skinny