what is the longest river that passes the states that border the state that borders the most states 
return states ;return border states of #1 ;return number of  #2 for each #1 ;return #1 where #3 is the  highest ;return border states of #4 ;return rivers of #5 ;return how long are #6 ;return #6 where #7 is the  highest
['select', 'project', 'group', 'comparative', 'project', 'project', 'project', 'comparative']