How many more total yards of field goals did Jeff Reed make than Shayne Graham?
return Jeff Reed ;return Shayne Graham ;return field goals of #1 ;return field goals of #2 ;return yards of #3 ;return yards of #4 ;return sum of #5 ;return sum of #6 ;return the  difference of #7 and  #8
['select', 'select', 'project', 'project', 'project', 'project', 'aggregate', 'aggregate', 'arithmetic']