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.

Input: Consider Input: vitamin c, carbs, fiber, fat, thin

Output: thin


Input: Consider Input: pastry, dunker, fritter, blow, cake

Output: blow


Input: Consider Input: solid, sustainability, streamline, firm, private


Output: solid