So each time we roll, it's a trial. And success is when we get a six, failure is when we don't get a six. So the outcome of each trial can be classified as either a success or failure. So it meets, and let me put the checks right over here, it meets this first constraint. Are the results of each trial independent? Well, whether I get a six on the first roll or the second roll or the third roll or the fourth roll or the third roll, the probabilities shouldn't be dependent on whether I did or didn't get a six on a previous roll. So we have the independence.