Task: Question Generation
Input (English): #1 return students  
#2 return gpa  of #1 
#3 return average of #2 
#4 return #1 where #2 is lower than #3 
#5 return first name of #4 
#6 return gpa  of #4 
#7 return #5 ,  #6
Output (English): Find the first name and gpa of the students whose gpa is lower than the average gpa of all students.