Show the colleges that have both authors with submission score larger than 90 and authors with submission score smaller than 80.
return colleges ;return authors  of #1 ;return submission  scores of #2 ;return #1 where #3 is higher than 90 ;return #1 where #3 is lower than 80 ;return #1 in  both #4 and  #5
['select', 'project', 'project', 'comparative', 'comparative', 'intersection']