How many more yards of total field goals did Shaun Suisham make than Randy Bullock?
return field goals ;return #1 of Shaun Suisham ;return #1 of Randy Bullock ;return yards of #2 ;return yards of #3 ;return sum of #4 ;return sum of #5 ;return difference of #6 and  #7
['select', 'filter', 'filter', 'project', 'project', 'aggregate', 'aggregate', 'arithmetic']