How many more games did Scott Cassidy win than Pasqual Coco?
return Scott Cassidy ;return Pasqual Coco ;return games win of #1 ;return games win of #2 ;return number of  #3 ;return number of  #4 ;return the  difference of #5 and  #6
['select', 'select', 'project', 'project', 'aggregate', 'aggregate', 'arithmetic']