How many more yards did Stephen Hauschka kick for field goals in the second half than the first?
return Stephen Hauschka ;return field goals of #1 ;return #2 in  the  second half ;return #2 in  the  first half ;return yards of #3 ;return yards of #4 ;return sum of #5 ;return sum of #6 ;return difference of #7 and  #8
['select', 'project', 'filter', 'filter', 'project', 'project', 'aggregate', 'aggregate', 'arithmetic']