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: miserable, ground, up, opposite of up, down

Output: miserable


Input: Consider Input: hunting, goat, camp, trap, fish

Output: goat


Input: Consider Input: tropical, cool, unruffled, popular, ethical


Output: tropical