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: valley, house, cabin, squashed, flat

Output: valley


Input: Consider Input: fair, well, milky, medium, loyal

Output: loyal


Input: Consider Input: jog, bike, fly, drive, jump


Output: jump