Find the list of documents that are both in the most three popular type and have the most three popular structure.
return documents ;return types of #1 ;return structures of #1 ;return how popular  #2 is  ;return how popular  #3 is  ;return three  most of #4 ;return three  most of #5 ;return #1 in both #6 and #7
['select', 'project', 'project', 'project', 'project', 'project', 'project', 'intersection']