Whare the names, friends, and ages of all people who are older than the average age of a person?
return people ;return the  ages of  #1 ;return the  average of  #2 ;return #1 where #2 are  higher than #3 ;return the  names of  #4 ;return the  friends of  #4 ;return the  ages of  #4 ;return #5 ,  #6 ,   #7
['select', 'project', 'aggregate', 'comparative', 'project', 'project', 'project', 'union']