Show the famous titles of the artists with both volumes that lasted more than 2 weeks on top and volumes that lasted less than 2 weeks on top.
return artists ;return volumes  of #1 ;return weeks  on top that  #2 lasted ;return number of  #3 for each #2 ;return #1 where #4 is  more than  2 ;return #1 where #4 is  less than  2 ;return #1 in both #5 and #6 ;return famous titles of #7
['select', 'project', 'project', 'group', 'comparative', 'comparative', 'intersection', 'project']