How many teams finished the 2012 season with a better record than the Mavericks?
return teams ;return Mavericks ;return 2012 season record of #1 ;return 2012 season record of #2 ;return #1 where #3 is higher than #4 ;return number of  of #5 ;return
['select', 'select', 'project', 'project', 'comparative', 'aggregate', 'select']