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: apartment, round, valley, flat, even

Output: valley


Input: Consider Input: hatchling, fawn, cute, kid, deer

Output: cute


Input: Consider Input: hearing, jail time, prison, dull, fine


Output: dull