How many points did Miami beat Dallas by in game 1?
return Miami ;return points of #1 ;return #2 in  game 1 ;return sum of #3 ;return Dallas ;return points of #5 ;return #6 in  game 1 ;return sum of #7 ;return difference of #4 and  #8
['select', 'project', 'filter', 'aggregate', 'select', 'project', 'filter', 'aggregate', 'arithmetic']