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