How many points did Chicago win the last game they at home against Dallas?
return Chicago ;return home games of #1 ;return #2 that are against Dallas ;return the  last of #3 ;return points of Chicago of  #4 ;return points of Dallas of  #4 ;return the  difference of #5 and  #6
['select', 'project', 'filter', 'aggregate', 'project', 'project', 'arithmetic']