What is the first name, gpa and phone number of the top 5 students with highest gpa?
return students ;return gpas of #1 ;return #1 where #2 are in the  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']