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: signal, sea, current, drink, belated

Output: belated


Input: Consider Input: probation, ticket, exquisite, suspension, fine

Output: exquisite


Input: Consider Input: dock, crew, deck, blind, stern


Output: blind