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: fly, fish, flap, bike, glide

Output: fish


Input: Consider Input: promote, empower, fire, ice, ban

Output: ice


Input: Consider Input: rigged, shareholders, private, firm, streamline


Output: rigged