susan urlick. it was great. may i clarify a couple of things. so, the c.m.s. star rating, the hospitals can get from 1 to 5 stars. and generally you see hospitals in the united states falling into a bell curve. so of course we are at the tail end of the bell curve. it is true that safety net hospitals, those serving disproportionate share of medicaid and uninsured patients, tend to be shifted to the left on that bell curve. if you looked at the bell curve of safety net hospitals, instead of the hump being a three, it's closer to a two or below. so, it's not that safety net hospitals could not be 3, 4 and 5, it's just much more rare. so, that's the circumstance. the reason is that the data going into those reports is not adequately risk adjusted. meaning that we have in addition to serving disproportionate numbers of medicaid and uninsured patients, that includes more people who are homeless, more people who have mental illness, more people for whom it's difficult to do well on some of these measures. so, that is, that has been recognized as you correctly state