Which student are enrolled in at least two courses? Give me the student ID and personal name.
return students ;return courses #1 are enrolled in ;return number of  #2 for each #1 ;return #1 where #3 is  at least two ;return student  ID of #4 ;return personal name of #4 ;return #5 ,  #6
['select', 'project', 'group', 'comparative', 'project', 'project', 'union']