Well, we get this result and we get six and seven. Now notice this. Going from tens of negative four to ten to negative six is a decrease in 100 fold. And going from 10th to negative four to ten to negative seven is a decrease in 1000 fold. But on a PH scale, on a log scale, it only decreases by an increment of two and an increment of three. And that means now, we can graph these guys.