How many more yards was Karney's field goal over Longwell's shortest field goal?
return Karney ;return field goal  of #1 ;return yards of #2 ;return Longwell ;return field goals of #4 ;return yards of #5 ;return shortest of #6 ;return difference of #3 and  #7
['select', 'project', 'project', 'select', 'project', 'project', 'aggregate', 'arithmetic']