{HEAD ~ The apparatus} further includes {TAIL ~ a metering roll} positioned to contact grain advancing out of said discharge opening of said grain column, wherein said metering roll has a vane diameter equal to VD, and VD≧6.0 inches 
includes
{ HEAD ~ The apparatus } further includes { TAIL ~ a metering roll } positioned to contact grain advancing out of said discharge opening of said grain column , wherein said metering roll has a vane diameter equal to VD , and VD≧6.0 inches
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH