ocr: Causu Conligaalidn Expet ERE Romos Srede ractors soning FoderNone Geoda grading: syssen Gradad Meghtod proppRd srodos QukztosundExume: 6 CRORRQUATOT sarbgee, Ascianmens Exenond LelterPniens3/0 > - Figure 4: The two rows: correspond to: the Two grading factors; there: are five columns pecause three speciol grading factors were selected.