Generate a list of elements from the markov chain.
            The `max` value is in place in order to prevent excessive iteration.

def random_output(self, max=100):
        """ Generate a list of elements from the markov chain.
            The `max` value is in place in order to prevent excessive iteration.
        """
        output = []
        item1 = item2 = MarkovChain.START
        for i in range(max-3):
            item3 = self[(item1, item2)].roll()
            if item3 is MarkovChain.END:
                break
            output.append(item3)
            item1 = item2
            item2 = item3
        return output