What are the id and first name of the student whose addresses have the highest average monthly rental?
return students ;return addresses of #1 ;return monthly rentals of #2 ;return the   average of #3 for each #2 ;return #2 where #4 is  the   highest ;return #1 where #2 is  #5 ;return the   id of #6 ;return the   first name of #6 ;return #7 ,  #8
['select', 'project', 'project', 'group', 'comparative', 'comparative', 'project', 'project', 'union']