How many more points did the Ravens score in the second quarter compared to the first quarter?
return the  Ravens ;return points of #1 ;return #2 in  the  second quarter ;return #2 in  the  first quarter ;return sum of #3 ;return sum of #4 ;return difference of #5 and  #6
['select', 'project', 'filter', 'filter', 'aggregate', 'aggregate', 'arithmetic']