Which means that we are in one of these two different situations. Either the coin landed heads, they choose to continue and let's say we observed that the chance node end up going left, and then they chose play. Or the coin landed tails, player one chose to continue. We observe the chance node going left and they choose play. So, we're in either this situation or this situation. Well, we observed that they have this deviate action of where they could've gotten expected value 0.5, if the coin landed heads. So, maybe we would say,