Which documents have more than 1 draft copies? List document id and number of draft copies.
return documents ;return draft  copies of  #1 ;return number of  #2 for each  #1 ;return #1 where #3 is  higher than 1 ;return document ids of  #4 ;return draft  copies of  #4 ;return number of  #6 ;return #5 ,  #7
['select', 'project', 'group', 'comparative', 'project', 'project', 'aggregate', 'union']