What is the first name, GPA, and phone number of the students with the top 5 GPAs?
return students ;return GPAs of #1 ;return #1 where #2 are top 5 ;return first names of #3 ;return GPAs of #3 ;return phone numbers of #3 ;return #4 ,  #5 ,   #6
['select', 'project', 'comparative', 'project', 'project', 'project', 'union']