What are the names of the states that have some college students playing in the positions of goalie and mid-field?
return states ;return colleges of #1 ;return students of #2 ;return positions of #3 ;return #1 where #4 is goalie ;return #1 where #4 is mid-field ;return #1 in  both #5 and  #6 ;return names of #7
['select', 'project', 'project', 'project', 'comparative', 'comparative', 'intersection', 'project']