How many yards of difference were there between the shortest field goal of the first half compared to the first touchdown scored?
return field goals ;return #1 in  the  first half ;return yards of #2 ;return shortest of #3 ;return touchdowns ;return first of #5 ;return yards of #6 ;return difference of #4 and  #7
['select', 'filter', 'project', 'aggregate', 'select', 'aggregate', 'project', 'arithmetic']