Task: Question Generation
Input (English): #1 return customers 
#2 return orders of  #1 
#3 return number of  #2 for each  #1 
#4 return #1 where #3 is  highest 
#5 return name of  #4 
#6 return phone number of  #4 
#7 return email address of  #4 
#8 return #5 ,  #6 ,   #7
Output (English): What are the name, phone number and email address of the customer who made the largest number of orders?